Races · Senate · 2020 · AZ
Senate · class II · open seat

Mark Kelly vs Martha McSally

Tilt R · 120 polls · 0 markets Last poll 2015d ago Rating 1d ago
Caution · early warning
Editorial raters moved while polling has gone quiet

The last rating change here was 1d ago, but only 120 polls have landed in the last 60 days. When raters move and pollsters don't, the rating shift may be running ahead of the data. Watch for a late-cycle correction in either direction.

Where this race stands
Verified

Tilt R

tilt-r

Polling average

Simple Weighted House-corrected Trimmed LOESS Kalman
Method:Weighted, plus each pollster's measured bias subtracted before averaging.
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All polls · 120 results

120 of 120 polls
EndPollsterWeightLeanSampleMoEPopTrust signalsResultsSource
11/2/2020Ipsos/Reuters0.81L(D+5.0)610LV
2015d old✓ verified 5d ago+2
  • 2015d old
    Poll was fielded 2015 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 11 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 44.0 · Mark Kelly 53.0pollarch
11/1/2020Change Research/CNBC0.79L(D+5.1)409LV
2016d old✓ verified 5d ago+1
  • 2016d old
    Poll was fielded 2016 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 47.0 · Mark Kelly 51.0pollarch
11/1/2020NBC News/Marist0.75L(D+5.1)717LV
historical bias D+5.1pt2016d old+4
  • historical bias D+5.1pt
    Across 11 historical scored polls the average error vs. actual margin is D+5.1pt — a measurable house effect.
  • 2016d old
    Poll was fielded 2016 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • TV-network-sponsored: NBC News
    Commissioned by NBC News, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
  • tracks editorial consensus
    Across 12 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 46.0 · Mark Kelly 52.0pollarch
11/1/2020Swayable0.49L(D+7.7)333LV
historical bias D+7.7ptweight 0.49+4
  • historical bias D+7.7pt
    Across 15 historical scored polls the average error vs. actual margin is D+7.7pt — a measurable house effect.
  • weight 0.49
    Aggregation weight is 0.49 (1.0 ≈ average). Weight combines historical accuracy, methodology, and recency.
  • n=333
    Sample size of 333 respondents implies a margin of error around ±5.4pt — wider than typical.
  • 2016d old
    Poll was fielded 2016 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 55.0pollarch
11/1/2020Data for Progress1.00(D+1.0)1195LV
2016d oldhigh variance vs editorial consensus+3
  • 2016d old
    Poll was fielded 2016 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 127 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • accurate · bias D+1.0pt
    Across 50 historical scored polls this pollster's average error vs. actual margin is D+1.0pt — within ±1pt.
Martha McSally 46.0 · Mark Kelly 54.0pollarch
10/31/2020Emerson College1.00(D+0.7)732LV
2017d old✓ verified 5d ago+3
  • 2017d old
    Poll was fielded 2017 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 234 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
  • accurate · bias D+0.7pt
    Across 117 historical scored polls this pollster's average error vs. actual margin is D+0.7pt — within ±1pt.
Martha McSally 48.0 · Mark Kelly 50.0pollarch
10/31/2020Morning Consult1.00(D+5.0)1059LV
historical bias D+5.0pt2017d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2017d old
    Poll was fielded 2017 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 44.0 · Mark Kelly 48.0pollarch
10/30/2020Data Orbital1.42neutral(R+0.2)550LV
2018d old✓ verified 5d ago+3
  • 2018d old
    Poll was fielded 2018 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • bias R+0.2pt
    Across 10 historical scored polls the average error vs. actual margin is R+0.2pt.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 46.0 · Mark Kelly 47.0pollarch
10/30/2020Siena College/NYT Upshot0.78L(D+5.0)1253LV
2018d old✓ verified 5d ago+2
  • 2018d old
    Poll was fielded 2018 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 11 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 43.0 · Mark Kelly 50.0pollarch
10/30/2020Grand Canyon Battleground Poll1.00910LV
no scored polls2018d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2018d old
    Poll was fielded 2018 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 43.0 · Mark Kelly 46.0pollarch
10/30/2020CNN/SSRS1.00(D+4.4)892LV
historical bias D+4.4pt2018d old+3
  • historical bias D+4.4pt
    Across 17 historical scored polls the average error vs. actual margin is D+4.4pt — a measurable house effect.
  • 2018d old
    Poll was fielded 2018 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • TV-network-sponsored: CNN
    Commissioned by CNN, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
Martha McSally 45.0 · Mark Kelly 51.0pollarch
10/29/2020Pulse Opinion Research/Rasmussen Reports1.68(D+2.2)800LV
4 scored polls2019d old+2
  • 4 scored polls
    Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates.
  • 2019d old
    Poll was fielded 2019 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 43.0 · Mark Kelly 48.0pollarch
10/28/2020Gravis Marketing0.72L(D+2.9)704LV
bias D+2.9pt2020d old+3
  • bias D+2.9pt
    Across 33 historical scored polls the average error vs. actual margin is D+2.9pt.
  • 2020d old
    Poll was fielded 2020 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • uncorrelated with editorial consensus
    Across 49 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 50.0pollarch
10/27/2020Ipsos/Reutuers1.00714LV
no scored polls2021d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2021d old
    Poll was fielded 2021 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 44.0 · Mark Kelly 51.0pollarch
10/26/2020Swayable0.49L(D+7.7)286LV
historical bias D+7.7ptweight 0.49+4
  • historical bias D+7.7pt
    Across 15 historical scored polls the average error vs. actual margin is D+7.7pt — a measurable house effect.
  • weight 0.49
    Aggregation weight is 0.49 (1.0 ≈ average). Weight combines historical accuracy, methodology, and recency.
  • n=286
    Sample size of 286 respondents implies a margin of error around ±5.8pt — wider than typical.
  • 2022d old
    Poll was fielded 2022 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 44.0 · Mark Kelly 56.0pollarch
10/25/2020Justice Collaborative Project1.00L874LV
no scored polls2023d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2023d old
    Poll was fielded 2023 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 40.0 · Mark Kelly 50.0pollarch
10/25/2020OH Predictive Insights1.01(R+1.6)716LV
2023d old✓ verified 5d ago+2
  • 2023d old
    Poll was fielded 2023 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 45.0 · Mark Kelly 50.0pollarch
10/25/2020Univision/University of Houston/Latino Decisions/Latino Decisions/North Star Opinion Research1.00725RV
no scored polls2023d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2023d old
    Poll was fielded 2023 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
Martha McSally 39.0 · Mark Kelly 51.0pollarch
10/24/2020Patinkin Research Strategies0.91L(D+4.4)729LV
3 scored polls2024d old+2
  • 3 scored polls
    Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates.
  • 2024d old
    Poll was fielded 2024 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 46.0 · Mark Kelly 53.0pollarch
10/24/2020Y2 Analytics →1.00700LV
no scored polls2024d old+3
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2024d old
    Poll was fielded 2024 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • newspaper-sponsored: The Salt Lake Tribune
    Commissioned by The Salt Lake Tribune, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
Martha McSally 47.0 · Mark Kelly 51.0pollarch
10/22/2020Susquehanna Polling & Research Inc.1.00R500LV
no scored polls2026d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2026d old
    Poll was fielded 2026 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 50.0 · Mark Kelly 47.0pollarch
10/21/2020Ipsos/Reuters0.81L(D+5.0)658LV
2027d old✓ verified 5d ago+2
  • 2027d old
    Poll was fielded 2027 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 11 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 43.0 · Mark Kelly 51.0pollarch
10/20/2020Morning Consult1.00(D+5.0)1066LV
historical bias D+5.0pt2028d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2028d old
    Poll was fielded 2028 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 44.0 · Mark Kelly 48.0pollarch
10/19/2020Pulse Opinion Research/Rasmussen Reports1.68(D+2.2)800LV
4 scored polls2029d old+2
  • 4 scored polls
    Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates.
  • 2029d old
    Poll was fielded 2029 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 44.0 · Mark Kelly 46.0pollarch
10/19/2020Change Research/CNBC0.79L(D+5.1)232LV
n=2322029d old+2
  • n=232
    Sample size of 232 respondents implies a margin of error around ±6.4pt — wider than typical.
  • 2029d old
    Poll was fielded 2029 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 43.0 · Mark Kelly 54.0pollarch
10/19/2020RMG Research0.60L(D+6.6)800LV
2029d old✓ verified 5d ago+1
  • 2029d old
    Poll was fielded 2029 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 39.0 · Mark Kelly 49.0pollarch
10/18/2020Data Orbital1.42neutral(R+0.2)550LV
2030d old✓ verified 5d ago+3
  • 2030d old
    Poll was fielded 2030 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • bias R+0.2pt
    Across 10 historical scored polls the average error vs. actual margin is R+0.2pt.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 42.0 · Mark Kelly 48.0pollarch
10/16/2020YouGov/CBS1.001074LV
no scored polls2032d old+3
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2032d old
    Poll was fielded 2032 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • TV-network-sponsored: CBS News
    Commissioned by CBS News, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
Martha McSally 41.0 · Mark Kelly 52.0pollarch
10/14/2020Ipsos/Reuters0.81L(D+5.0)667LV
2034d old✓ verified 5d ago+2
  • 2034d old
    Poll was fielded 2034 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 11 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 41.0 · Mark Kelly 52.0pollarch
10/13/2020Monmouth University1.00(D+5.0)502RV
historical bias D+5.0pt2035d old+3
  • historical bias D+5.0pt
    Across 19 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2035d old
    Poll was fielded 2035 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
  • tracks editorial consensus
    Across 30 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 42.0 · Mark Kelly 52.0pollarch
10/11/2020Morning Consult1.00(D+5.0)1144LV
historical bias D+5.0pt2037d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2037d old
    Poll was fielded 2037 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 41.0 · Mark Kelly 49.0pollarch
10/9/2020Trafalgar Group1.00(R+2.1)1045LV
methodology not disclosed2039d old+3
  • methodology not disclosed
    Methodology not disclosed publicly; declined to participate in AAPOR Transparency Initiative. Included for transparency rather than weight-zeroing — many forecasters still include their polls — but the methodology opacity is worth surfacing. Source: https://en.wikipedia.org/wiki/Trafalgar_Group
  • 2039d old
    Poll was fielded 2039 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • R+4.1pt vs editors
    Across 7 historical polls where ≥2 editorial raters had rated the race (Cook / Sabato / IE / 538 / DDHQ etc.), this pollster's D-margin averaged 4.1pt MORE R-favorable than the rater consensus. Systematic R-lean relative to conventional wisdom.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 47.0pollarch
10/8/2020OH Predictive Insights1.01(R+1.6)608LV
2040d old✓ verified 5d ago+2
  • 2040d old
    Poll was fielded 2040 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 45.0 · Mark Kelly 50.0pollarch
10/7/2020Ipsos/Reuters0.81L(D+5.0)663LV
2041d old✓ verified 5d ago+2
  • 2041d old
    Poll was fielded 2041 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 11 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 41.0 · Mark Kelly 51.0pollarch
10/6/2020Latino Decisions1.00600LV
no scored polls2042d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2042d old
    Poll was fielded 2042 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 42.0 · Mark Kelly 47.0pollarch
10/5/2020Basswood Research1.00R800LV
no scored polls2043d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2043d old
    Poll was fielded 2043 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 49.0 · Mark Kelly 47.0pollarch
10/5/2020Data Orbital1.42neutral(R+0.2)550LV
2043d old✓ verified 5d ago+3
  • 2043d old
    Poll was fielded 2043 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • bias R+0.2pt
    Across 10 historical scored polls the average error vs. actual margin is R+0.2pt.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 44.0 · Mark Kelly 49.0pollarch
10/5/2020HighGround Inc.1.00400LV
no scored polls2043d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2043d old
    Poll was fielded 2043 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 44.0 · Mark Kelly 50.0pollarch
10/4/2020Change Research/CNBC0.79L(D+5.1)296LV
n=2962044d old+2
  • n=296
    Sample size of 296 respondents implies a margin of error around ±5.7pt — wider than typical.
  • 2044d old
    Poll was fielded 2044 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 43.0 · Mark Kelly 51.0pollarch
10/3/2020Siena College/NYT Upshot0.78L(D+5.0)655LV
2045d old✓ verified 5d ago+2
  • 2045d old
    Poll was fielded 2045 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 11 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 39.0 · Mark Kelly 50.0pollarch
10/3/2020Patinkin Research Strategies/Arizona Research Consortium1.00L604LV
no scored polls2045d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2045d old
    Poll was fielded 2045 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 50.0pollarch
10/2/2020Targoz Market Research0.77(R+1.0)1045LV
2046d oldhigh variance vs editorial consensus+3
  • 2046d old
    Poll was fielded 2046 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 26 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • bias R+1.0pt
    Across 11 historical scored polls the average error vs. actual margin is R+1.0pt.
Martha McSally 41.0 · Mark Kelly 51.0pollarch
10/1/2020Morning Consult1.00(D+5.0)1048LV
historical bias D+5.0pt2047d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2047d old
    Poll was fielded 2047 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 38.0 · Mark Kelly 51.0pollarch
9/30/2020Suffolk University1.44neutral(D+0.1)500LV
2048d old✓ verified 5d ago+3
  • 2048d old
    Poll was fielded 2048 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • bias D+0.1pt
    Across 15 historical scored polls the average error vs. actual margin is D+0.1pt.
  • tracks editorial consensus
    Across 55 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 40.0 · Mark Kelly 49.0pollarch
9/28/2020Susquehanna Polling & Research Inc.1.00R500LV
no scored polls2050d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2050d old
    Poll was fielded 2050 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 48.0pollarch
9/28/2020Data for Progress1.00(D+1.0)808LV
2050d oldhigh variance vs editorial consensus+3
  • 2050d old
    Poll was fielded 2050 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 127 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • accurate · bias D+1.0pt
    Across 50 historical scored polls this pollster's average error vs. actual margin is D+1.0pt — within ±1pt.
Martha McSally 42.0 · Mark Kelly 51.0pollarch
9/28/2020Morning Consult1.00(D+5.0)1000LV
historical bias D+5.0pt2050d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2050d old
    Poll was fielded 2050 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 36.0 · Mark Kelly 53.0pollarch
9/22/2020Data for Progress1.00(D+1.0)481LV
2056d oldhigh variance vs editorial consensus+3
  • 2056d old
    Poll was fielded 2056 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 127 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • accurate · bias D+1.0pt
    Across 50 historical scored polls this pollster's average error vs. actual margin is D+1.0pt — within ±1pt.
Martha McSally 38.0 · Mark Kelly 47.0pollarch
9/20/2020Change Research/CNBC0.79L(D+5.1)262LV
n=2622058d old+2
  • n=262
    Sample size of 262 respondents implies a margin of error around ±6.1pt — wider than typical.
  • 2058d old
    Poll was fielded 2058 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 43.0 · Mark Kelly 51.0pollarch
9/20/2020ABC News/Washington Post1.00579LV
no scored polls2058d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2058d old
    Poll was fielded 2058 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 48.0 · Mark Kelly 49.0pollarch
9/20/2020Morning Consult1.00(D+5.0)907LV
historical bias D+5.0pt2058d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2058d old
    Poll was fielded 2058 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 40.0 · Mark Kelly 49.0pollarch
9/19/2020Hart Research Associates1.00400LV
no scored polls2059d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2059d old
    Poll was fielded 2059 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 43.0 · Mark Kelly 55.0pollarch
9/17/2020Ipsos/Reuters0.81L(D+5.0)565LV
2061d old✓ verified 5d ago+2
  • 2061d old
    Poll was fielded 2061 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 11 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 41.0 · Mark Kelly 50.0pollarch
9/17/2020Morning Consult1.00(D+5.0)900LV
historical bias D+5.0pt2061d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2061d old
    Poll was fielded 2061 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 41.0 · Mark Kelly 48.0pollarch
9/16/2020Fabrizio, Lee & Associates1.00R800LV
no scored polls2062d old+4
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2062d old
    Poll was fielded 2062 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 14 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • newspaper-sponsored: Politico
    Commissioned by Politico, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
Martha McSally 46.0 · Mark Kelly 48.0pollarch
9/16/2020Redfield & Wilton Strategies1.00(D+5.3)855LV
2062d old✓ verified 5d ago+2
  • 2062d old
    Poll was fielded 2062 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 48 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 35.0 · Mark Kelly 53.0pollarch
9/15/2020Monmouth University1.00(D+5.0)420RV
historical bias D+5.0pt2063d old+3
  • historical bias D+5.0pt
    Across 19 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2063d old
    Poll was fielded 2063 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
  • tracks editorial consensus
    Across 30 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 44.0 · Mark Kelly 50.0pollarch
9/15/2020Siena College/NYT Upshot0.78L(D+5.0)653LV
2063d old✓ verified 5d ago+2
  • 2063d old
    Poll was fielded 2063 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 11 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 42.0 · Mark Kelly 50.0pollarch
9/14/2020Morning Consult1.00(D+5.0)1000LV
historical bias D+5.0pt2064d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2064d old
    Poll was fielded 2064 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 38.0 · Mark Kelly 50.0pollarch
9/13/2020Patinkin Research Strategies/Arizona Research Consortium1.00L679LV
no scored polls2065d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2065d old
    Poll was fielded 2065 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 50.0pollarch
9/13/2020Kaiser Family Foundation/Cook Political Report1.001298RV
no scored polls2065d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2065d old
    Poll was fielded 2065 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
Martha McSally 36.0 · Mark Kelly 44.0pollarch
9/11/2020Gravis Marketing0.72L(D+2.9)684LV
bias D+2.9pt2067d old+3
  • bias D+2.9pt
    Across 33 historical scored polls the average error vs. actual margin is D+2.9pt.
  • 2067d old
    Poll was fielded 2067 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • uncorrelated with editorial consensus
    Across 49 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 43.0 · Mark Kelly 48.0pollarch
9/11/2020YouGov/CBS1.001106LV
no scored polls2067d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2067d old
    Poll was fielded 2067 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 42.0 · Mark Kelly 49.0pollarch
9/10/2020OH Predictive Insights1.01(R+1.6)600LV
2068d old✓ verified 5d ago+2
  • 2068d old
    Poll was fielded 2068 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 42.0 · Mark Kelly 52.0pollarch
9/8/2020Benenson Strategy Group/GS Strategy Group1.001600LV
no scored polls2070d old+3
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2070d old
    Poll was fielded 2070 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • n=1,600
    Sample size of 1,600 respondents implies a margin of error around ±2.5pt — tighter than the ~600-respondent typical.
Martha McSally 45.0 · Mark Kelly 48.0pollarch
9/6/2020Change Research/CNBC0.79L(D+5.1)470LV
2072d old✓ verified 5d ago+1
  • 2072d old
    Poll was fielded 2072 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 51.0pollarch
9/4/2020Redfield & Wilton Strategies1.00(D+5.3)830LV
2074d old✓ verified 5d ago+2
  • 2074d old
    Poll was fielded 2074 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 48 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 38.0 · Mark Kelly 53.0pollarch
9/4/2020Morning Consult1.00(D+5.0)1000LV
historical bias D+5.0pt2074d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2074d old
    Poll was fielded 2074 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 39.0 · Mark Kelly 50.0pollarch
9/1/2020Fox News1.00(D+2.6)772LV
bias D+2.6pt2077d old+2
  • bias D+2.6pt
    Across 19 historical scored polls the average error vs. actual margin is D+2.6pt.
  • 2077d old
    Poll was fielded 2077 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 39.0 · Mark Kelly 56.0pollarch
8/31/2020Basswood Research1.00R800LV
no scored polls2078d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2078d old
    Poll was fielded 2078 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 48.0 · Mark Kelly 48.0pollarch
8/25/2020Morning Consult1.00(D+5.0)1000LV
historical bias D+5.0pt2084d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2084d old
    Poll was fielded 2084 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 35.0 · Mark Kelly 53.0pollarch
8/18/2020Redfield and Wilton Strategies1.00856LV
no scored polls2091d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2091d old
    Poll was fielded 2091 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 34.0 · Mark Kelly 53.0pollarch
8/15/2020Morning Consult1.00(D+5.0)1000LV
historical bias D+5.0pt2094d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2094d old
    Poll was fielded 2094 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 43.0 · Mark Kelly 46.0pollarch
8/10/2020Emerson College1.00(D+0.7)661LV
2099d old✓ verified 5d ago+3
  • 2099d old
    Poll was fielded 2099 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 234 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
  • accurate · bias D+0.7pt
    Across 117 historical scored polls this pollster's average error vs. actual margin is D+0.7pt — within ±1pt.
Martha McSally 41.0 · Mark Kelly 52.0pollarch
8/9/2020Change Research/CNBC0.79L(D+5.1)428LV
2100d old✓ verified 5d ago+1
  • 2100d old
    Poll was fielded 2100 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 43.0 · Mark Kelly 49.0pollarch
8/5/2020Morning Consult1.00(D+5.0)1000LV
historical bias D+5.0pt2104d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2104d old
    Poll was fielded 2104 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 38.0 · Mark Kelly 49.0pollarch
8/4/2020OH Predictive Insights1.01(R+1.6)603LV
2105d old✓ verified 5d ago+2
  • 2105d old
    Poll was fielded 2105 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 43.0 · Mark Kelly 48.0pollarch
8/4/2020OnMessage, Inc. *3.36neutral(R+0.2)400LV
2105d oldR+4.1pt vs editors+3
  • 2105d old
    Poll was fielded 2105 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • R+4.1pt vs editors
    Across 10 historical polls where ≥2 editorial raters had rated the race (Cook / Sabato / IE / 538 / DDHQ etc.), this pollster's D-margin averaged 4.1pt MORE R-favorable than the rater consensus. Systematic R-lean relative to conventional wisdom.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • weight 3.36
    Aggregation weight is 3.36 (1.0 ≈ average). Weight is a derived metric combining historical accuracy, methodology, and recency.
Martha McSally 48.0 · Mark Kelly 48.0pollarch
8/2/2020Data for Progress1.00(D+1.0)1215LV
2107d oldhigh variance vs editorial consensus+3
  • 2107d old
    Poll was fielded 2107 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 127 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • accurate · bias D+1.0pt
    Across 50 historical scored polls this pollster's average error vs. actual margin is D+1.0pt — within ±1pt.
Martha McSally 40.0 · Mark Kelly 50.0pollarch
7/26/2020Change Research/CNBC0.79L(D+5.1)365LV
n=3652114d old+2
  • n=365
    Sample size of 365 respondents implies a margin of error around ±5.1pt — wider than typical.
  • 2114d old
    Poll was fielded 2114 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 47.0pollarch
7/26/2020Morning Consult1.00(D+5.0)908LV
historical bias D+5.0pt2114d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2114d old
    Poll was fielded 2114 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 36.0 · Mark Kelly 52.0pollarch
7/24/2020CNN/SSRS1.00(D+4.4)873RV
historical bias D+4.4pt2116d old+3
  • historical bias D+4.4pt
    Across 17 historical scored polls the average error vs. actual margin is D+4.4pt — a measurable house effect.
  • 2116d old
    Poll was fielded 2116 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
  • TV-network-sponsored: CNN
    Commissioned by CNN, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
Martha McSally 43.0 · Mark Kelly 50.0pollarch
7/23/2020Redfield & Wilton Strategies1.00(D+5.3)858LV
2117d old✓ verified 5d ago+2
  • 2117d old
    Poll was fielded 2117 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 48 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 35.0 · Mark Kelly 53.0pollarch
7/23/2020Morning Consult1.00(D+5.0)1000LV
historical bias D+5.0pt2117d old+3
  • historical bias D+5.0pt
    Across 29 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2117d old
    Poll was fielded 2117 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 62 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 39.0 · Mark Kelly 49.0pollarch
7/22/2020Public Policy Polling1.00(D+1.1)816unknown
2118d olduncorrelated with editorial consensus+2
  • 2118d old
    Poll was fielded 2118 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • uncorrelated with editorial consensus
    Across 368 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • bias D+1.1pt
    Across 72 historical scored polls the average error vs. actual margin is D+1.1pt.
Martha McSally 42.0 · Mark Kelly 51.0pollarch
7/22/2020NBC News/Marist0.75L(D+5.1)826RV
historical bias D+5.1pt2118d old+3
  • historical bias D+5.1pt
    Across 11 historical scored polls the average error vs. actual margin is D+5.1pt — a measurable house effect.
  • 2118d old
    Poll was fielded 2118 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
  • tracks editorial consensus
    Across 12 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 41.0 · Mark Kelly 53.0pollarch
7/16/2020Spry Strategies1.00R700LV
no scored polls2124d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2124d old
    Poll was fielded 2124 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 41.0 · Mark Kelly 48.0pollarch
7/12/2020Change Research/CNBC0.79L(D+5.1)345LV
n=3452128d old+2
  • n=345
    Sample size of 345 respondents implies a margin of error around ±5.3pt — wider than typical.
  • 2128d old
    Poll was fielded 2128 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 52.0pollarch
7/10/2020CBS News/YouGov0.92L(D+3.4)1087LV
historical bias D+3.4pt2130d old+3
  • historical bias D+3.4pt
    Across 16 historical scored polls the average error vs. actual margin is D+3.4pt — a measurable house effect.
  • 2130d old
    Poll was fielded 2130 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 23 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 42.0 · Mark Kelly 46.0pollarch
7/7/2020OH Predictive Insights1.01(R+1.6)600LV
2133d old✓ verified 5d ago+2
  • 2133d old
    Poll was fielded 2133 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 43.0 · Mark Kelly 52.0pollarch
6/29/2020Data Orbital1.42neutral(R+0.2)600LV
2141d old✓ verified 5d ago+3
  • 2141d old
    Poll was fielded 2141 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • bias R+0.2pt
    Across 10 historical scored polls the average error vs. actual margin is R+0.2pt.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 43.0 · Mark Kelly 50.0pollarch
6/28/2020Change Research/CNBC0.79L(D+5.1)311LV
n=3112142d old+2
  • n=311
    Sample size of 311 respondents implies a margin of error around ±5.6pt — wider than typical.
  • 2142d old
    Poll was fielded 2142 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 44.0 · Mark Kelly 53.0pollarch
6/27/2020Gravis Marketing0.72L(D+2.9)527LV
bias D+2.9pt2143d old+3
  • bias D+2.9pt
    Across 33 historical scored polls the average error vs. actual margin is D+2.9pt.
  • 2143d old
    Poll was fielded 2143 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • uncorrelated with editorial consensus
    Across 49 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 46.0 · Mark Kelly 42.0pollarch
6/24/2020Global Strategy Group1.00800LV
no scored polls2146d old+4
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2146d old
    Poll was fielded 2146 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • uncorrelated with editorial consensus
    Across 31 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • newspaper-sponsored: Politico
    Commissioned by Politico, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
Martha McSally 42.0 · Mark Kelly 49.0pollarch
6/23/2020Change Research0.61L(D+3.7)946LV
historical bias D+3.7pt2147d old+3
  • historical bias D+3.7pt
    Across 18 historical scored polls the average error vs. actual margin is D+3.7pt — a measurable house effect.
  • 2147d old
    Poll was fielded 2147 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 30 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 42.0 · Mark Kelly 50.0pollarch
6/23/2020Change Research0.61L(D+3.7)946LV
historical bias D+3.7pt2147d old+3
  • historical bias D+3.7pt
    Across 18 historical scored polls the average error vs. actual margin is D+3.7pt — a measurable house effect.
  • 2147d old
    Poll was fielded 2147 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 30 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Daniel McCarthy 44.0 · Mark Kelly 50.0pollarch
6/17/2020Redfield & Wilton Strategies1.00(D+5.3)865LV
2153d old✓ verified 5d ago+2
  • 2153d old
    Poll was fielded 2153 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 48 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 34.0 · Mark Kelly 49.0pollarch
6/16/2020NYT Upshot/Siena College0.87(D+1.7)650RV
3 scored polls2154d old+2
  • 3 scored polls
    Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates.
  • 2154d old
    Poll was fielded 2154 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
Martha McSally 38.0 · Mark Kelly 47.0pollarch
6/15/2020Civiqs/Daily Kos0.91L(D+4.0)1368RV
2155d old✓ verified 5d ago+1
  • 2155d old
    Poll was fielded 2155 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
Martha McSally 42.0 · Mark Kelly 51.0pollarch
6/2/2020Fox News1.00(D+2.6)1002RV
bias D+2.6pt2168d old+2
  • bias D+2.6pt
    Across 19 historical scored polls the average error vs. actual margin is D+2.6pt.
  • 2168d old
    Poll was fielded 2168 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
Martha McSally 37.0 · Mark Kelly 50.0pollarch
5/22/2020HighGround Public Affairs0.68(R+0.9)400LV
3 scored polls2179d old+2
  • 3 scored polls
    Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates.
  • 2179d old
    Poll was fielded 2179 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 41.0 · Mark Kelly 51.0pollarch
5/11/2020OH Predictive Insights1.01(R+1.6)600LV
2190d old✓ verified 5d ago+2
  • 2190d old
    Poll was fielded 2190 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 38.0 · Mark Kelly 51.0pollarch
4/8/2020OH Predictive Insights1.01(R+1.6)600LV
2223d old✓ verified 5d ago+2
  • 2223d old
    Poll was fielded 2223 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 42.0 · Mark Kelly 51.0pollarch
3/15/2020NBC News/Marist0.75L(D+5.1)2523RV
historical bias D+5.1pt2247d old+4
  • historical bias D+5.1pt
    Across 11 historical scored polls the average error vs. actual margin is D+5.1pt — a measurable house effect.
  • 2247d old
    Poll was fielded 2247 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
  • n=2,523
    Sample size of 2,523 respondents implies a margin of error around ±2.0pt — tighter than the ~600-respondent typical.
  • tracks editorial consensus
    Across 12 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 45.0 · Mark Kelly 48.0pollarch
3/14/2020Monmouth University1.00(D+5.0)847RV
historical bias D+5.0pt2248d old+3
  • historical bias D+5.0pt
    Across 19 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect.
  • 2248d old
    Poll was fielded 2248 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
  • tracks editorial consensus
    Across 30 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 44.0 · Mark Kelly 50.0pollarch
3/11/2020Univision/Arizona State University1.001036RV
no scored polls2251d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2251d old
    Poll was fielded 2251 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
Martha McSally 36.0 · Mark Kelly 48.0pollarch
3/4/2020OH Predictive Insights1.01(R+1.6)600LV
2258d old✓ verified 5d ago+2
  • 2258d old
    Poll was fielded 2258 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 42.0 · Mark Kelly 49.0pollarch
3/3/2020Public Policy Polling1.00(D+1.1)666unknown
2259d olduncorrelated with editorial consensus+2
  • 2259d old
    Poll was fielded 2259 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • uncorrelated with editorial consensus
    Across 368 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • bias D+1.1pt
    Across 72 historical scored polls the average error vs. actual margin is D+1.1pt.
Martha McSally 42.0 · Mark Kelly 47.0pollarch
2/9/2020HighGround Public Affairs0.68(R+0.9)400LV
3 scored polls2282d old+2
  • 3 scored polls
    Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates.
  • 2282d old
    Poll was fielded 2282 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 39.0 · Mark Kelly 46.0pollarch
1/24/2020Fabrizio, Lee & Associates1.00R1000LV
no scored polls2298d old+4
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2298d old
    Poll was fielded 2298 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 14 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • newspaper-sponsored: Politico
    Commissioned by Politico, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
Martha McSally 47.0 · Mark Kelly 45.0pollarch
1/4/2020Public Policy Polling1.00(D+1.1)760unknown
2318d olduncorrelated with editorial consensus+2
  • 2318d old
    Poll was fielded 2318 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • uncorrelated with editorial consensus
    Across 368 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • bias D+1.1pt
    Across 72 historical scored polls the average error vs. actual margin is D+1.1pt.
Martha McSally 42.0 · Mark Kelly 46.0pollarch
12/4/2019OH Predictive Insights1.01(R+1.6)628LV
2349d old✓ verified 5d ago+2
  • 2349d old
    Poll was fielded 2349 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 44.0 · Mark Kelly 47.0pollarch
10/28/2019Emerson College1.00(D+0.7)904RV
2386d old✓ verified 5d ago+3
  • 2386d old
    Poll was fielded 2386 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
  • tracks editorial consensus
    Across 234 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
  • accurate · bias D+0.7pt
    Across 117 historical scored polls this pollster's average error vs. actual margin is D+0.7pt — within ±1pt.
Martha McSally 45.0 · Mark Kelly 46.0pollarch
9/28/2019Change Research0.61L(D+3.7)856RV
historical bias D+3.7pt2416d old+3
  • historical bias D+3.7pt
    Across 18 historical scored polls the average error vs. actual margin is D+3.7pt — a measurable house effect.
  • 2416d old
    Poll was fielded 2416 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • high variance vs editorial consensus
    Stdev of (poll − rater consensus) across 30 historical paired polls exceeds 8pt — this pollster's results swing widely relative to where the editors place the same races.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
Martha McSally 45.0 · Mark Kelly 47.0pollarch
9/12/2019Bendixen & Amandi International1.00520RV
no scored polls2432d old+3
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2432d old
    Poll was fielded 2432 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • registered voters
    Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize.
  • newspaper-sponsored: Politico
    Commissioned by Politico, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
Martha McSally 42.0 · Mark Kelly 42.0pollarch
8/14/2019OH Predictive Insights1.01(R+1.6)600LV
2461d old✓ verified 5d ago+2
  • 2461d old
    Poll was fielded 2461 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 41.0 · Mark Kelly 46.0pollarch
7/31/2019Fabrizio Ward/AARP1.00600LV
no scored polls2475d old+2
  • no scored polls
    Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured.
  • 2475d old
    Poll was fielded 2475 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
Martha McSally 45.0 · Mark Kelly 44.0pollarch
5/2/2019OH Predictive Insights1.01(R+1.6)600LV
2565d old✓ verified 5d ago+2
  • 2565d old
    Poll was fielded 2565 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 45.0 · Mark Kelly 44.0pollarch
2/13/2019OH Predictive Insights1.01(R+1.6)600LV
2643d old✓ verified 5d ago+2
  • 2643d old
    Poll was fielded 2643 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 46.0 · Mark Kelly 44.0pollarch
2/13/2019OH Predictive Insights1.01(R+1.6)600LV
2643d old✓ verified 5d ago+2
  • 2643d old
    Poll was fielded 2643 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
  • ✓ verified 5d ago
    auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
  • likely-voter screen
    Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
  • tracks editorial consensus
    Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
Martha McSally 49.0 · Ruben Gallego 41.0pollarch

Trust signals are deterministic flags computed from the pollster scorecard (track-record size, historical bias, aggregation weight) and the poll itself (sample size, population, age, citation availability). No interpretation; click any row to see the cited numbers behind each flag.

Money in this race

FEC Schedule E (independent expenditures) + candidate-committee totals · last filing 2020-12-18
Total IE spending
$5.8M
For candidates
$2.9M
Against candidates
$2.8M
Latest filing: 12/18/2020
Source: FEC Schedule E
$1.4M for · $2.8M against
Cash on hand
$115K
Total raised (cycle)
$73.6M
Total spent
$74.4M
Debts
$586K
Source: FEC
$1.6M for · $0 against
Cash on hand
$1.4M
Total raised (cycle)
$101.1M
Total spent
$99.7M
Debts
$0
Source: FEC
Daniel McCarthy (?)
$0 for · $0 against
Cash on hand
$80
Total raised (cycle)
$608K
Total spent
$608K
Debts
$512K
Source: FEC

Independent expenditures from FEC Schedule E. "For" = pro-candidate ads / mail / digital. "Against" = anti-candidate. Excludes candidate-committee spending and state-level filings (governor races aren't covered here — they file with state agencies).

Editorial ratings · poll-vs-rater

5 raters
Rater Rating Updated Poll D-marg. Rater marg. Δ poll−rater
The Cook Political Report Lean D Oct 29 +3.5
DDHQ Likely D Nov 3 +9.0
538 Likely D Nov 2 +9.0
Inside Elections Tilt D Oct 28 +1.3
Sabato's Crystal Ball Lean D Nov 2 +3.5

Δ POLL−RATER = polling-consensus margin minus the rater's implied bucket midpoint. Positive = polls more D than rater; negative = rater more D than polls. |Δ| < 0.6 well-aligned · 0.6–1.5 mild divergence · ≥1.5 contested call.

last poll 67 months ago (11/2/2020) last market quote rating computed 1 day ago
Rating history (2 changes)
  • 5/3/2026 Tilt R via pvi held 2127d
  • 7/6/2020 Likely D D+8.3 via polls