| 11/2/2020 | Ipsos/Reuters | 0.81 | L(D+5.0) | 610 | — | LV | 🟡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 53.0 | pollarch |
| 11/1/2020 | Change Research/CNBC | 0.79 | L(D+5.1) | 409 | — | LV | 🟡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 51.0 | pollarch |
| 11/1/2020 | NBC News/Marist | 0.75 | L(D+5.1) | 717 | — | LV | 🟠historical bias D+5.1pt🟡2016d 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 52.0 | pollarch |
| 11/1/2020 | Swayable | 0.49 | L(D+7.7) | 333 | — | LV | 🟠historical bias D+7.7pt🟠weight 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 55.0 | pollarch |
| 11/1/2020 | Data for Progress | 1.00 | —(D+1.0) | 1195 | — | LV | 🟡2016d old🟡high 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 54.0 | pollarch |
| 10/31/2020 | Emerson College | 1.00 | —(D+0.7) | 732 | — | LV | 🟡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 50.0 | pollarch |
| 10/31/2020 | Morning Consult | 1.00 | —(D+5.0) | 1059 | — | LV | 🟠historical bias D+5.0pt🟡2017d 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 48.0 | pollarch |
| 10/30/2020 | Data Orbital | 1.42 | neutral(R+0.2) | 550 | — | LV | 🟡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 47.0 | pollarch |
| 10/30/2020 | Siena College/NYT Upshot | 0.78 | L(D+5.0) | 1253 | — | LV | 🟡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 50.0 | pollarch |
| 10/30/2020 | Grand Canyon Battleground Poll | 1.00 | — | 910 | — | LV | 🟡no scored polls🟡2018d 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 46.0 | pollarch |
| 10/30/2020 | CNN/SSRS | 1.00 | —(D+4.4) | 892 | — | LV | 🟠historical bias D+4.4pt🟡2018d 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 51.0 | pollarch |
| 10/29/2020 | Pulse Opinion Research/Rasmussen Reports | 1.68 | —(D+2.2) | 800 | — | LV | 🟡4 scored polls🟡2019d 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 48.0 | pollarch |
| 10/28/2020 | Gravis Marketing | 0.72 | L(D+2.9) | 704 | — | LV | 🟡bias D+2.9pt🟡2020d 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 50.0 | pollarch |
| 10/27/2020 | Ipsos/Reutuers | 1.00 | — | 714 | — | LV | 🟡no scored polls🟡2021d 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 51.0 | pollarch |
| 10/26/2020 | Swayable | 0.49 | L(D+7.7) | 286 | — | LV | 🟠historical bias D+7.7pt🟠weight 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 56.0 | pollarch |
| 10/25/2020 | Justice Collaborative Project | 1.00 | L | 874 | — | LV | 🟡no scored polls🟡2023d 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 50.0 | pollarch |
| 10/25/2020 | OH Predictive Insights | 1.01 | —(R+1.6) | 716 | — | LV | 🟡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 50.0 | pollarch |
| 10/25/2020 | Univision/University of Houston/Latino Decisions/Latino Decisions/North Star Opinion Research | 1.00 | — | 725 | — | RV | 🟡no scored polls🟡2023d 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 51.0 | pollarch |
| 10/24/2020 | Patinkin Research Strategies | 0.91 | L(D+4.4) | 729 | — | LV | 🟡3 scored polls🟡2024d 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 53.0 | pollarch |
| 10/24/2020 | Y2 Analytics → | 1.00 | — | 700 | — | LV | 🟡no scored polls🟡2024d 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 51.0 | pollarch |
| 10/22/2020 | Susquehanna Polling & Research Inc. | 1.00 | R | 500 | — | LV | 🟡no scored polls🟡2026d 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 47.0 | pollarch |
| 10/21/2020 | Ipsos/Reuters | 0.81 | L(D+5.0) | 658 | — | LV | 🟡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 51.0 | pollarch |
| 10/20/2020 | Morning Consult | 1.00 | —(D+5.0) | 1066 | — | LV | 🟠historical bias D+5.0pt🟡2028d 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 48.0 | pollarch |
| 10/19/2020 | Pulse Opinion Research/Rasmussen Reports | 1.68 | —(D+2.2) | 800 | — | LV | 🟡4 scored polls🟡2029d 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 46.0 | pollarch |
| 10/19/2020 | Change Research/CNBC | 0.79 | L(D+5.1) | 232 | — | LV | 🟡n=232🟡2029d 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 54.0 | pollarch |
| 10/19/2020 | RMG Research | 0.60 | L(D+6.6) | 800 | — | LV | 🟡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 49.0 | pollarch |
| 10/18/2020 | Data Orbital | 1.42 | neutral(R+0.2) | 550 | — | LV | 🟡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 48.0 | pollarch |
| 10/16/2020 | YouGov/CBS | 1.00 | — | 1074 | — | LV | 🟡no scored polls🟡2032d 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 52.0 | pollarch |
| 10/14/2020 | Ipsos/Reuters | 0.81 | L(D+5.0) | 667 | — | LV | 🟡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 52.0 | pollarch |
| 10/13/2020 | Monmouth University | 1.00 | —(D+5.0) | 502 | — | RV | 🟠historical bias D+5.0pt🟡2035d 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 52.0 | pollarch |
| 10/11/2020 | Morning Consult | 1.00 | —(D+5.0) | 1144 | — | LV | 🟠historical bias D+5.0pt🟡2037d 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 49.0 | pollarch |
| 10/9/2020 | Trafalgar Group | 1.00 | —(R+2.1) | 1045 | — | LV | 🟠methodology not disclosed🟡2039d 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 47.0 | pollarch |
| 10/8/2020 | OH Predictive Insights | 1.01 | —(R+1.6) | 608 | — | LV | 🟡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 50.0 | pollarch |
| 10/7/2020 | Ipsos/Reuters | 0.81 | L(D+5.0) | 663 | — | LV | 🟡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 51.0 | pollarch |
| 10/6/2020 | Latino Decisions | 1.00 | — | 600 | — | LV | 🟡no scored polls🟡2042d 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 47.0 | pollarch |
| 10/5/2020 | Basswood Research | 1.00 | R | 800 | — | LV | 🟡no scored polls🟡2043d 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 47.0 | pollarch |
| 10/5/2020 | Data Orbital | 1.42 | neutral(R+0.2) | 550 | — | LV | 🟡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 49.0 | pollarch |
| 10/5/2020 | HighGround Inc. | 1.00 | — | 400 | — | LV | 🟡no scored polls🟡2043d 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 50.0 | pollarch |
| 10/4/2020 | Change Research/CNBC | 0.79 | L(D+5.1) | 296 | — | LV | 🟡n=296🟡2044d 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 51.0 | pollarch |
| 10/3/2020 | Siena College/NYT Upshot | 0.78 | L(D+5.0) | 655 | — | LV | 🟡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 50.0 | pollarch |
| 10/3/2020 | Patinkin Research Strategies/Arizona Research Consortium | 1.00 | L | 604 | — | LV | 🟡no scored polls🟡2045d 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 50.0 | pollarch |
| 10/2/2020 | Targoz Market Research | 0.77 | —(R+1.0) | 1045 | — | LV | 🟡2046d old🟡high 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 51.0 | pollarch |
| 10/1/2020 | Morning Consult | 1.00 | —(D+5.0) | 1048 | — | LV | 🟠historical bias D+5.0pt🟡2047d 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 51.0 | pollarch |
| 9/30/2020 | Suffolk University | 1.44 | neutral(D+0.1) | 500 | — | LV | 🟡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 49.0 | pollarch |
| 9/28/2020 | Susquehanna Polling & Research Inc. | 1.00 | R | 500 | — | LV | 🟡no scored polls🟡2050d 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 48.0 | pollarch |
| 9/28/2020 | Data for Progress | 1.00 | —(D+1.0) | 808 | — | LV | 🟡2050d old🟡high 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 51.0 | pollarch |
| 9/28/2020 | Morning Consult | 1.00 | —(D+5.0) | 1000 | — | LV | 🟠historical bias D+5.0pt🟡2050d 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 53.0 | pollarch |
| 9/22/2020 | Data for Progress | 1.00 | —(D+1.0) | 481 | — | LV | 🟡2056d old🟡high 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 47.0 | pollarch |
| 9/20/2020 | Change Research/CNBC | 0.79 | L(D+5.1) | 262 | — | LV | 🟡n=262🟡2058d 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 51.0 | pollarch |
| 9/20/2020 | ABC News/Washington Post | 1.00 | — | 579 | — | LV | 🟡no scored polls🟡2058d 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 49.0 | pollarch |
| 9/20/2020 | Morning Consult | 1.00 | —(D+5.0) | 907 | — | LV | 🟠historical bias D+5.0pt🟡2058d 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 49.0 | pollarch |
| 9/19/2020 | Hart Research Associates | 1.00 | — | 400 | — | LV | 🟡no scored polls🟡2059d 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 55.0 | pollarch |
| 9/17/2020 | Ipsos/Reuters | 0.81 | L(D+5.0) | 565 | — | LV | 🟡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 50.0 | pollarch |
| 9/17/2020 | Morning Consult | 1.00 | —(D+5.0) | 900 | — | LV | 🟠historical bias D+5.0pt🟡2061d 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 48.0 | pollarch |
| 9/16/2020 | Fabrizio, Lee & Associates | 1.00 | R | 800 | — | LV | 🟡no scored polls🟡2062d 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 48.0 | pollarch |
| 9/16/2020 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 855 | — | LV | 🟡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 53.0 | pollarch |
| 9/15/2020 | Monmouth University | 1.00 | —(D+5.0) | 420 | — | RV | 🟠historical bias D+5.0pt🟡2063d 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 50.0 | pollarch |
| 9/15/2020 | Siena College/NYT Upshot | 0.78 | L(D+5.0) | 653 | — | LV | 🟡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 50.0 | pollarch |
| 9/14/2020 | Morning Consult | 1.00 | —(D+5.0) | 1000 | — | LV | 🟠historical bias D+5.0pt🟡2064d 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 50.0 | pollarch |
| 9/13/2020 | Patinkin Research Strategies/Arizona Research Consortium | 1.00 | L | 679 | — | LV | 🟡no scored polls🟡2065d 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 50.0 | pollarch |
| 9/13/2020 | Kaiser Family Foundation/Cook Political Report | 1.00 | — | 1298 | — | RV | 🟡no scored polls🟡2065d 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 44.0 | pollarch |
| 9/11/2020 | Gravis Marketing | 0.72 | L(D+2.9) | 684 | — | LV | 🟡bias D+2.9pt🟡2067d 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 48.0 | pollarch |
| 9/11/2020 | YouGov/CBS | 1.00 | — | 1106 | — | LV | 🟡no scored polls🟡2067d 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 49.0 | pollarch |
| 9/10/2020 | OH Predictive Insights | 1.01 | —(R+1.6) | 600 | — | LV | 🟡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 52.0 | pollarch |
| 9/8/2020 | Benenson Strategy Group/GS Strategy Group | 1.00 | — | 1600 | — | LV | 🟡no scored polls🟡2070d 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 48.0 | pollarch |
| 9/6/2020 | Change Research/CNBC | 0.79 | L(D+5.1) | 470 | — | LV | 🟡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 51.0 | pollarch |
| 9/4/2020 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 830 | — | LV | 🟡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 53.0 | pollarch |
| 9/4/2020 | Morning Consult | 1.00 | —(D+5.0) | 1000 | — | LV | 🟠historical bias D+5.0pt🟡2074d 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 50.0 | pollarch |
| 9/1/2020 | Fox News | 1.00 | —(D+2.6) | 772 | — | LV | 🟡bias D+2.6pt🟡2077d 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 56.0 | pollarch |
| 8/31/2020 | Basswood Research | 1.00 | R | 800 | — | LV | 🟡no scored polls🟡2078d 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 48.0 | pollarch |
| 8/25/2020 | Morning Consult | 1.00 | —(D+5.0) | 1000 | — | LV | 🟠historical bias D+5.0pt🟡2084d 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 53.0 | pollarch |
| 8/18/2020 | Redfield and Wilton Strategies | 1.00 | — | 856 | — | LV | 🟡no scored polls🟡2091d 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 53.0 | pollarch |
| 8/15/2020 | Morning Consult | 1.00 | —(D+5.0) | 1000 | — | LV | 🟠historical bias D+5.0pt🟡2094d 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 46.0 | pollarch |
| 8/10/2020 | Emerson College | 1.00 | —(D+0.7) | 661 | — | LV | 🟡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 52.0 | pollarch |
| 8/9/2020 | Change Research/CNBC | 0.79 | L(D+5.1) | 428 | — | LV | 🟡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 49.0 | pollarch |
| 8/5/2020 | Morning Consult | 1.00 | —(D+5.0) | 1000 | — | LV | 🟠historical bias D+5.0pt🟡2104d 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 49.0 | pollarch |
| 8/4/2020 | OH Predictive Insights | 1.01 | —(R+1.6) | 603 | — | LV | 🟡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 48.0 | pollarch |
| 8/4/2020 | OnMessage, Inc. * | 3.36 | neutral(R+0.2) | 400 | — | LV | 🟡2105d old🟡R+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 48.0 | pollarch |
| 8/2/2020 | Data for Progress | 1.00 | —(D+1.0) | 1215 | — | LV | 🟡2107d old🟡high 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 50.0 | pollarch |
| 7/26/2020 | Change Research/CNBC | 0.79 | L(D+5.1) | 365 | — | LV | 🟡n=365🟡2114d 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 47.0 | pollarch |
| 7/26/2020 | Morning Consult | 1.00 | —(D+5.0) | 908 | — | LV | 🟠historical bias D+5.0pt🟡2114d 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 52.0 | pollarch |
| 7/24/2020 | CNN/SSRS | 1.00 | —(D+4.4) | 873 | — | RV | 🟠historical bias D+4.4pt🟡2116d 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 50.0 | pollarch |
| 7/23/2020 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 858 | — | LV | 🟡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 53.0 | pollarch |
| 7/23/2020 | Morning Consult | 1.00 | —(D+5.0) | 1000 | — | LV | 🟠historical bias D+5.0pt🟡2117d 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 49.0 | pollarch |
| 7/22/2020 | Public Policy Polling | 1.00 | —(D+1.1) | 816 | — | unknown | 🟡2118d old🟡uncorrelated 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 51.0 | pollarch |
| 7/22/2020 | NBC News/Marist | 0.75 | L(D+5.1) | 826 | — | RV | 🟠historical bias D+5.1pt🟡2118d 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 53.0 | pollarch |
| 7/16/2020 | Spry Strategies | 1.00 | R | 700 | — | LV | 🟡no scored polls🟡2124d 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 48.0 | pollarch |
| 7/12/2020 | Change Research/CNBC | 0.79 | L(D+5.1) | 345 | — | LV | 🟡n=345🟡2128d 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 52.0 | pollarch |
| 7/10/2020 | CBS News/YouGov | 0.92 | L(D+3.4) | 1087 | — | LV | 🟠historical bias D+3.4pt🟡2130d 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 46.0 | pollarch |
| 7/7/2020 | OH Predictive Insights | 1.01 | —(R+1.6) | 600 | — | LV | 🟡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 52.0 | pollarch |
| 6/29/2020 | Data Orbital | 1.42 | neutral(R+0.2) | 600 | — | LV | 🟡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 50.0 | pollarch |
| 6/28/2020 | Change Research/CNBC | 0.79 | L(D+5.1) | 311 | — | LV | 🟡n=311🟡2142d 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 53.0 | pollarch |
| 6/27/2020 | Gravis Marketing | 0.72 | L(D+2.9) | 527 | — | LV | 🟡bias D+2.9pt🟡2143d 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 42.0 | pollarch |
| 6/24/2020 | Global Strategy Group | 1.00 | — | 800 | — | LV | 🟡no scored polls🟡2146d 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 49.0 | pollarch |
| 6/23/2020 | Change Research | 0.61 | L(D+3.7) | 946 | — | LV | 🟠historical bias D+3.7pt🟡2147d 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 50.0 | pollarch |
| 6/23/2020 | Change Research | 0.61 | L(D+3.7) | 946 | — | LV | 🟠historical bias D+3.7pt🟡2147d 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 50.0 | pollarch |
| 6/17/2020 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 865 | — | LV | 🟡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 49.0 | pollarch |
| 6/16/2020 | NYT Upshot/Siena College | 0.87 | —(D+1.7) | 650 | — | RV | 🟡3 scored polls🟡2154d 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 47.0 | pollarch |
| 6/15/2020 | Civiqs/Daily Kos | 0.91 | L(D+4.0) | 1368 | — | RV | 🟡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 51.0 | pollarch |
| 6/2/2020 | Fox News | 1.00 | —(D+2.6) | 1002 | — | RV | 🟡bias D+2.6pt🟡2168d 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 50.0 | pollarch |
| 5/22/2020 | HighGround Public Affairs | 0.68 | —(R+0.9) | 400 | — | LV | 🟡3 scored polls🟡2179d 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 51.0 | pollarch |
| 5/11/2020 | OH Predictive Insights | 1.01 | —(R+1.6) | 600 | — | LV | 🟡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 51.0 | pollarch |
| 4/8/2020 | OH Predictive Insights | 1.01 | —(R+1.6) | 600 | — | LV | 🟡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 51.0 | pollarch |
| 3/15/2020 | NBC News/Marist | 0.75 | L(D+5.1) | 2523 | — | RV | 🟠historical bias D+5.1pt🟡2247d 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 48.0 | pollarch |
| 3/14/2020 | Monmouth University | 1.00 | —(D+5.0) | 847 | — | RV | 🟠historical bias D+5.0pt🟡2248d 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 50.0 | pollarch |
| 3/11/2020 | Univision/Arizona State University | 1.00 | — | 1036 | — | RV | 🟡no scored polls🟡2251d 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 48.0 | pollarch |
| 3/4/2020 | OH Predictive Insights | 1.01 | —(R+1.6) | 600 | — | LV | 🟡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 49.0 | pollarch |
| 3/3/2020 | Public Policy Polling | 1.00 | —(D+1.1) | 666 | — | unknown | 🟡2259d old🟡uncorrelated 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 47.0 | pollarch |
| 2/9/2020 | HighGround Public Affairs | 0.68 | —(R+0.9) | 400 | — | LV | 🟡3 scored polls🟡2282d 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 46.0 | pollarch |
| 1/24/2020 | Fabrizio, Lee & Associates | 1.00 | R | 1000 | — | LV | 🟡no scored polls🟡2298d 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 45.0 | pollarch |
| 1/4/2020 | Public Policy Polling | 1.00 | —(D+1.1) | 760 | — | unknown | 🟡2318d old🟡uncorrelated 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 46.0 | pollarch |
| 12/4/2019 | OH Predictive Insights | 1.01 | —(R+1.6) | 628 | — | LV | 🟡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 47.0 | pollarch |
| 10/28/2019 | Emerson College | 1.00 | —(D+0.7) | 904 | — | RV | 🟡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 46.0 | pollarch |
| 9/28/2019 | Change Research | 0.61 | L(D+3.7) | 856 | — | RV | 🟠historical bias D+3.7pt🟡2416d 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 47.0 | pollarch |
| 9/12/2019 | Bendixen & Amandi International | 1.00 | — | 520 | — | RV | 🟡no scored polls🟡2432d 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 42.0 | pollarch |
| 8/14/2019 | OH Predictive Insights | 1.01 | —(R+1.6) | 600 | — | LV | 🟡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 46.0 | pollarch |
| 7/31/2019 | Fabrizio Ward/AARP | 1.00 | — | 600 | — | LV | 🟡no scored polls🟡2475d 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 44.0 | pollarch |
| 5/2/2019 | OH Predictive Insights | 1.01 | —(R+1.6) | 600 | — | LV | 🟡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 44.0 | pollarch |
| 2/13/2019 | OH Predictive Insights | 1.01 | —(R+1.6) | 600 | — | LV | 🟡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 44.0 | pollarch |
| 2/13/2019 | OH Predictive Insights | 1.01 | —(R+1.6) | 600 | — | LV | 🟡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 41.0 | pollarch |