| 11/4/2024 | AtlasIntel | 2.09 | neutral(D+0.3) | 707 | — | LV | 🟡552d old⚪✓ verified 5d ago+3- 🟡
552d old Poll was fielded 552 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. - 🔵
weight 2.09 Aggregation weight is 2.09 (1.0 ≈ average). Weight is a derived metric combining historical accuracy, methodology, and recency. - 🟢
accurate · bias D+0.3pt Across 30 historical scored polls this pollster's average error vs. actual margin is D+0.3pt — within ±1pt.
| Jacky Rosen 48.0 · Sam Brown 43.0 | pollarch |
| 11/3/2024 | Patriot Polling | 1.37 | R(R+1.4) | 792 | — | RV | 🟡553d old⚪✓ verified 5d ago+2- 🟡
553d old Poll was fielded 553 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. - 🔵
bias R+1.4pt Across 10 historical scored polls the average error vs. actual margin is R+1.4pt.
| Jacky Rosen 51.0 · Sam Brown 48.0 | pollarch |
| 11/2/2024 | AtlasIntel | 2.09 | neutral(D+0.3) | 782 | — | LV | 🟡554d old⚪✓ verified 5d ago+3- 🟡
554d old Poll was fielded 554 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. - 🔵
weight 2.09 Aggregation weight is 2.09 (1.0 ≈ average). Weight is a derived metric combining historical accuracy, methodology, and recency. - 🟢
accurate · bias D+0.3pt Across 30 historical scored polls this pollster's average error vs. actual margin is D+0.3pt — within ±1pt.
| Jacky Rosen 46.0 · Sam Brown 46.0 | pollarch |
| 11/2/2024 | Emerson College | 1.00 | —(D+0.7) | 840 | — | LV | 🟡554d old⚪✓ verified 5d ago+3- 🟡
554d old Poll was fielded 554 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.
| Jacky Rosen 50.0 · Sam Brown 44.0 | pollarch |
| 11/2/2024 | New York Times/Siena College | 0.98 | L(D+4.1) | 1010 | — | LV | 🟡554d old⚪✓ verified 5d ago+3- 🟡
554d old Poll was fielded 554 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 New York Times Commissioned by The New York Times, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding. - 🔵
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.
| Jacky Rosen 52.0 · Sam Brown 43.0 | pollarch |
| 10/31/2024 | AtlasIntel | 2.09 | neutral(D+0.3) | 845 | — | LV | 🟡556d old⚪✓ verified 5d ago+3- 🟡
556d old Poll was fielded 556 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. - 🔵
weight 2.09 Aggregation weight is 2.09 (1.0 ≈ average). Weight is a derived metric combining historical accuracy, methodology, and recency. - 🟢
accurate · bias D+0.3pt Across 30 historical scored polls this pollster's average error vs. actual margin is D+0.3pt — within ±1pt.
| Jacky Rosen 47.0 · Sam Brown 45.0 | pollarch |
| 10/31/2024 | Emerson College | 1.00 | —(D+0.7) | 700 | — | LV | 🟡556d old⚪✓ verified 5d ago+3- 🟡
556d old Poll was fielded 556 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.
| Jacky Rosen 49.0 · Sam Brown 45.0 | pollarch |
| 10/31/2024 | Noble Predictive Insights | 1.00 | —(D+3.0) | 593 | — | LV | 🟡4 scored polls🟡556d old+2- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
556d old Poll was fielded 556 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.
| Jacky Rosen 48.0 · Sam Brown 46.0 | pollarch |
| 10/31/2024 | Susquehanna Polling & Research | 1.12 | neutral(D+0.1) | 400 | — | LV | 🟡556d old⚪✓ verified 5d ago+1- 🟡
556d old Poll was fielded 556 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.
| Jacky Rosen 46.0 · Sam Brown 47.0 | pollarch |
| 10/31/2024 | YouGov | 1.00 | —(D+3.7) | 753 | — | LV | 🟠historical bias D+3.7pt🟡556d old+2- 🟠
historical bias D+3.7pt Across 22 historical scored polls the average error vs. actual margin is D+3.7pt — a measurable house effect. - 🟡
556d old Poll was fielded 556 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.
| Jacky Rosen 51.0 · Sam Brown 44.0 | pollarch |
| 10/30/2024 | Rasmussen Reports | 1.00 | —(R+2.1) | 767 | — | LV | 🟡bias R+2.1pt🟡557d old+3- 🟡
bias R+2.1pt Across 50 historical scored polls the average error vs. actual margin is R+2.1pt. - 🟡
557d old Poll was fielded 557 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 74 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.
| Jacky Rosen 50.0 · Sam Brown 41.0 | pollarch |
| 10/30/2024 | Data for Progress | 1.00 | —(D+1.0) | 721 | — | LV | 🟡557d old🟡high variance vs editorial consensus+3- 🟡
557d old Poll was fielded 557 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.
| Jacky Rosen 49.0 · Sam Brown 42.0 | pollarch |
| 10/29/2024 | AtlasIntel | 2.09 | neutral(D+0.3) | 1083 | — | LV | 🟡558d old⚪✓ verified 5d ago+3- 🟡
558d old Poll was fielded 558 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. - 🔵
weight 2.09 Aggregation weight is 2.09 (1.0 ≈ average). Weight is a derived metric combining historical accuracy, methodology, and recency. - 🟢
accurate · bias D+0.3pt Across 30 historical scored polls this pollster's average error vs. actual margin is D+0.3pt — within ±1pt.
| Jacky Rosen 49.0 · Sam Brown 44.0 | pollarch |
| 10/28/2024 | The Trafalgar Group | 0.89 | R(R+3.4) | 1082 | — | LV | 🟠historical bias R+3.4pt🟡559d old+2- 🟠
historical bias R+3.4pt Across 52 historical scored polls the average error vs. actual margin is R+3.4pt — a measurable house effect. - 🟡
559d old Poll was fielded 559 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.
| Jacky Rosen 47.0 · Sam Brown 45.0 | pollarch |
| 10/26/2024 | CNN/SRSS | 1.00 | — | 683 | — | LV | 🟡no scored polls🟡561d old+2- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
561d old Poll was fielded 561 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.
| Jacky Rosen 50.0 · Sam Brown 41.0 | pollarch |
| 10/22/2024 | OnMessage, Inc. * | 3.36 | neutral(R+0.2) | 600 | — | LV | 🟡565d old🟡R+4.1pt vs editors+3- 🟡
565d old Poll was fielded 565 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.
| Jacky Rosen 48.0 · Sam Brown 48.0 | pollarch |
| 10/20/2024 | InsiderAdvantage | 0.92 | R(R+2.6) | 800 | — | LV | 🟡bias R+2.6pt🟡567d old+3- 🟡
bias R+2.6pt Across 33 historical scored polls the average error vs. actual margin is R+2.6pt. - 🟡
567d old Poll was fielded 567 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 60 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.
| Jacky Rosen 48.0 · Sam Brown 44.0 | pollarch |
| 10/18/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 529 | — | LV | 🟡569d old⚪✓ verified 5d ago+2- 🟡
569d old Poll was fielded 569 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.
| Jacky Rosen 48.0 · Sam Brown 41.0 | pollarch |
| 10/17/2024 | AtlasIntel | 2.09 | neutral(D+0.3) | 1171 | — | LV | 🟡570d old⚪✓ verified 5d ago+3- 🟡
570d old Poll was fielded 570 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. - 🔵
weight 2.09 Aggregation weight is 2.09 (1.0 ≈ average). Weight is a derived metric combining historical accuracy, methodology, and recency. - 🟢
accurate · bias D+0.3pt Across 30 historical scored polls this pollster's average error vs. actual margin is D+0.3pt — within ±1pt.
| Jacky Rosen 47.0 · Sam Brown 43.0 | pollarch |
| 10/15/2024 | Fabrizio Ward (R)/Impact Research | 1.00 | L | 600 | — | LV | 🟡no scored polls🟡572d old+3- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
572d old Poll was fielded 572 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.
| Jacky Rosen 49.0 · Sam Brown 44.0 | pollarch |
| 10/15/2024 | Morning Consult | 1.00 | —(D+5.0) | 496 | — | LV | 🟠historical bias D+5.0pt🟡572d 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. - 🟡
572d old Poll was fielded 572 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.
| Jacky Rosen 52.0 · Sam Brown 37.0 | pollarch |
| 10/14/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 838 | — | LV | 🟡573d old⚪✓ verified 5d ago+2- 🟡
573d old Poll was fielded 573 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.
| Jacky Rosen 46.0 · Sam Brown 41.0 | pollarch |
| 10/14/2024 | Rasmussen Reports | 1.00 | —(R+2.1) | 748 | — | LV | 🟡bias R+2.1pt🟡573d old+3- 🟡
bias R+2.1pt Across 50 historical scored polls the average error vs. actual margin is R+2.1pt. - 🟡
573d old Poll was fielded 573 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 74 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.
| Jacky Rosen 47.0 · Sam Brown 44.0 | pollarch |
| 10/13/2024 | The Trafalgar Group | 0.89 | R(R+3.4) | 1088 | — | LV | 🟠historical bias R+3.4pt🟡574d old+2- 🟠
historical bias R+3.4pt Across 52 historical scored polls the average error vs. actual margin is R+3.4pt — a measurable house effect. - 🟡
574d old Poll was fielded 574 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.
| Jacky Rosen 48.0 · Sam Brown 43.0 | pollarch |
| 10/8/2024 | Emerson College | 1.00 | —(D+0.7) | 900 | — | LV | 🟡579d old⚪✓ verified 5d ago+3- 🟡
579d old Poll was fielded 579 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.
| Jacky Rosen 50.0 · Sam Brown 42.0 | pollarch |
| 10/3/2024 | RMG Research | 0.60 | L(D+6.6) | 782 | — | LV | 🟡584d old⚪✓ verified 5d ago+1- 🟡
584d old Poll was fielded 584 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.
| Jacky Rosen 53.0 · Sam Brown 37.0 | pollarch |
| 10/2/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 514 | — | LV | 🟡585d old⚪✓ verified 5d ago+2- 🟡
585d old Poll was fielded 585 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.
| Jacky Rosen 48.0 · Sam Brown 41.0 | pollarch |
| 9/30/2024 | InsiderAdvantage | 0.92 | R(R+2.6) | 800 | — | LV | 🟡bias R+2.6pt🟡587d old+3- 🟡
bias R+2.6pt Across 33 historical scored polls the average error vs. actual margin is R+2.6pt. - 🟡
587d old Poll was fielded 587 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 60 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.
| Jacky Rosen 49.0 · Sam Brown 42.0 | pollarch |
| 9/25/2024 | AtlasIntel | 2.09 | neutral(D+0.3) | 858 | — | LV | 🟡592d old⚪✓ verified 5d ago+3- 🟡
592d old Poll was fielded 592 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. - 🔵
weight 2.09 Aggregation weight is 2.09 (1.0 ≈ average). Weight is a derived metric combining historical accuracy, methodology, and recency. - 🟢
accurate · bias D+0.3pt Across 30 historical scored polls this pollster's average error vs. actual margin is D+0.3pt — within ±1pt.
| Jacky Rosen 48.0 · Sam Brown 46.0 | pollarch |
| 9/25/2024 | BSG (R)/GS Strategy Group | 1.00 | L | 409 | — | LV | 🟡no scored polls🟡592d old+3- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
592d old Poll was fielded 592 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🟡
uncorrelated with editorial consensus Across 8 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.
| Jacky Rosen 52.0 · Sam Brown 38.0 | pollarch |
| 9/22/2024 | Rasmussen Reports | 1.00 | —(R+2.1) | 738 | — | LV | 🟡bias R+2.1pt🟡595d old+3- 🟡
bias R+2.1pt Across 50 historical scored polls the average error vs. actual margin is R+2.1pt. - 🟡
595d old Poll was fielded 595 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 74 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.
| Jacky Rosen 50.0 · Sam Brown 40.0 | pollarch |
| 9/20/2024 | Remington Research Group | 0.61 | neutral(D+0.5) | 800 | — | LV | 🟡597d old⚪✓ verified 5d ago+3- 🟡
597d old Poll was fielded 597 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+0.5pt Across 10 historical scored polls the average error vs. actual margin is D+0.5pt. - 🔵
tracks editorial consensus Across 25 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.
| Jacky Rosen 47.0 · Sam Brown 41.0 | pollarch |
| 9/19/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 652 | — | LV | 🟡598d old⚪✓ verified 5d ago+2- 🟡
598d old Poll was fielded 598 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.
| Jacky Rosen 47.0 · Sam Brown 38.0 | pollarch |
| 9/19/2024 | The Tarrance Group | 3.77 | —(D+1.1) | 600 | — | LV | 🟡3 scored polls🟡598d old+4- 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
598d old Poll was fielded 598 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 5 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. - 🔵
weight 3.77 Aggregation weight is 3.77 (1.0 ≈ average). Weight is a derived metric combining historical accuracy, methodology, and recency.
| Jacky Rosen 48.0 · Sam Brown 41.0 | pollarch |
| 9/18/2024 | Emerson College | 1.00 | —(D+0.7) | 895 | — | LV | 🟡599d old⚪✓ verified 5d ago+3- 🟡
599d old Poll was fielded 599 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.
| Jacky Rosen 48.0 · Sam Brown 41.0 | pollarch |
| 9/18/2024 | Morning Consult | 1.00 | —(D+5.0) | 474 | — | LV | 🟠historical bias D+5.0pt🟡599d 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. - 🟡
599d old Poll was fielded 599 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.
| Jacky Rosen 52.0 · Sam Brown 39.0 | pollarch |
| 9/16/2024 | Noble Predictive Insights | 1.00 | —(D+3.0) | 692 | — | LV | 🟡4 scored polls🟡601d old+2- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
601d old Poll was fielded 601 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.
| Jacky Rosen 53.0 · Sam Brown 38.0 | pollarch |
| 9/13/2024 | The Trafalgar Group | 0.89 | R(R+3.4) | 1079 | — | LV | 🟠historical bias R+3.4pt🟡604d old+2- 🟠
historical bias R+3.4pt Across 52 historical scored polls the average error vs. actual margin is R+3.4pt — a measurable house effect. - 🟡
604d old Poll was fielded 604 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.
| Jacky Rosen 48.0 · Sam Brown 40.0 | pollarch |
| 9/9/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 698 | — | LV | 🟡608d old⚪✓ verified 5d ago+2- 🟡
608d old Poll was fielded 608 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.
| Jacky Rosen 47.0 · Sam Brown 39.0 | pollarch |
| 9/8/2024 | Morning Consult | 1.00 | —(D+5.0) | 516 | — | LV | 🟠historical bias D+5.0pt🟡609d 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. - 🟡
609d old Poll was fielded 609 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.
| Jacky Rosen 50.0 · Sam Brown 40.0 | pollarch |
| 9/3/2024 | YouGov | 1.00 | —(D+3.7) | 800 | — | RV | 🟠historical bias D+3.7pt🟡614d old+2- 🟠
historical bias D+3.7pt Across 22 historical scored polls the average error vs. actual margin is D+3.7pt — a measurable house effect. - 🟡
614d old Poll was fielded 614 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.
| Jacky Rosen 51.0 · Sam Brown 39.0 | pollarch |
| 8/31/2024 | InsiderAdvantage | 0.92 | R(R+2.6) | 800 | — | LV | 🟡bias R+2.6pt🟡617d old+3- 🟡
bias R+2.6pt Across 33 historical scored polls the average error vs. actual margin is R+2.6pt. - 🟡
617d old Poll was fielded 617 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 60 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.
| Jacky Rosen 49.0 · Sam Brown 39.0 | pollarch |
| 8/29/2024 | CNN/SRSS | 1.00 | — | 626 | — | LV | 🟡no scored polls🟡619d old+2- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
619d old Poll was fielded 619 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.
| Jacky Rosen 50.0 · Sam Brown 40.0 | pollarch |
| 8/28/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 490 | — | LV | 🟡620d old⚪✓ verified 5d ago+2- 🟡
620d old Poll was fielded 620 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.
| Jacky Rosen 43.0 · Sam Brown 39.0 | pollarch |
| 8/28/2024 | Emerson College | 1.00 | —(D+0.7) | 1168 | — | LV | 🟡620d old⚪✓ verified 5d ago+3- 🟡
620d old Poll was fielded 620 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.
| Jacky Rosen 50.0 · Sam Brown 40.0 | pollarch |
| 8/26/2024 | Fox News | 1.00 | —(D+2.6) | 1026 | — | RV | 🟡bias D+2.6pt🟡622d old+2- 🟡
bias D+2.6pt Across 19 historical scored polls the average error vs. actual margin is D+2.6pt. - 🟡
622d old Poll was fielded 622 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.
| Jacky Rosen 55.0 · Sam Brown 41.0 | pollarch |
| 8/18/2024 | Rasmussen Reports | 1.00 | —(R+2.1) | 980 | — | LV | 🟡bias R+2.1pt🟡630d old+3- 🟡
bias R+2.1pt Across 50 historical scored polls the average error vs. actual margin is R+2.1pt. - 🟡
630d old Poll was fielded 630 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 74 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.
| Jacky Rosen 50.0 · Sam Brown 39.0 | pollarch |
| 8/15/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 536 | — | LV | 🟡633d old⚪✓ verified 5d ago+2- 🟡
633d old Poll was fielded 633 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.
| Jacky Rosen 41.0 · Sam Brown 37.0 | pollarch |
| 8/15/2024 | New York Times/Siena College | 0.98 | L(D+4.1) | 677 | — | RV | 🟡633d old⚪✓ verified 5d ago+3- 🟡
633d old Poll was fielded 633 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: The New York Times Commissioned by The New York Times, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding. - 🔵
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.
| Jacky Rosen 48.0 · Sam Brown 37.0 | pollarch |
| 8/14/2024 | Strategies 360 | 1.13 | —(D+2.5) | 350 | — | RV | 🟡3 scored polls🟡n=350+3- 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
n=350 Sample size of 350 respondents implies a margin of error around ±5.2pt — wider than typical. - 🟡
634d old Poll was fielded 634 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.
| Jacky Rosen 50.0 · Sam Brown 38.0 | pollarch |
| 8/5/2024 | Providence Polling | 1.00 | — | 991 | — | LV | 🟡no scored polls🟡643d old+2- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
643d old Poll was fielded 643 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.
| Jacky Rosen 52.0 · Sam Brown 40.0 | pollarch |
| 8/3/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 470 | — | LV | 🟡645d old⚪✓ verified 5d ago+2- 🟡
645d old Poll was fielded 645 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.
| Jacky Rosen 41.0 · Sam Brown 38.0 | pollarch |
| 8/2/2024 | BSG (R)/GS Strategy Group | 1.00 | L | 403 | — | LV | 🟡no scored polls🟡646d old+3- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
646d old Poll was fielded 646 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🟡
uncorrelated with editorial consensus Across 8 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.
| Jacky Rosen 54.0 · Sam Brown 36.0 | pollarch |
| 7/24/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 435 | — | LV | 🟡655d old⚪✓ verified 5d ago+2- 🟡
655d old Poll was fielded 655 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.
| Jacky Rosen 45.0 · Sam Brown 40.0 | pollarch |
| 7/18/2024 | Redfield & Wilton Strategies | 1.00 | —(D+5.3) | 412 | — | LV | 🟡661d old⚪✓ verified 5d ago+2- 🟡
661d old Poll was fielded 661 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.
| Jacky Rosen 41.0 · Sam Brown 37.0 | pollarch |
| 7/12/2024 | Rasmussen Reports | 1.00 | —(R+2.1) | 761 | — | LV | 🟡bias R+2.1pt🟡667d old+3- 🟡
bias R+2.1pt Across 50 historical scored polls the average error vs. actual margin is R+2.1pt. - 🟡
667d old Poll was fielded 667 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 74 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.
| Jacky Rosen 45.0 · Sam Brown 42.0 | pollarch |
| 7/12/2024 | YouGov | 1.00 | —(D+3.7) | 800 | — | RV | 🟠historical bias D+3.7pt🟡667d old+2- 🟠
historical bias D+3.7pt Across 22 historical scored polls the average error vs. actual margin is D+3.7pt — a measurable house effect. - 🟡
667d old Poll was fielded 667 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.
| Jacky Rosen 47.0 · Sam Brown 40.0 | pollarch |
| 7/1/2024 | Remington Research Group | 0.61 | neutral(D+0.5) | 601 | — | LV | 🟡678d old⚪✓ verified 5d ago+3- 🟡
678d old Poll was fielded 678 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+0.5pt Across 10 historical scored polls the average error vs. actual margin is D+0.5pt. - 🔵
tracks editorial consensus Across 25 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.
| Jacky Rosen 48.0 · Sam Brown 46.0 | pollarch |
| 7/1/2024 | National Public Affairs | 1.00 | — | 817 | — | LV | 🟡no scored polls🟡678d old+2- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
678d old Poll was fielded 678 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.
| Jacky Rosen 41.0 · Sam Brown 33.0 | pollarch |
| 6/18/2024 | Emerson College | 1.00 | —(D+0.7) | 1000 | — | RV | 🟡691d old⚪✓ verified 5d ago+4- 🟡
691d old Poll was fielded 691 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. - 🔵
university-sponsored: New Emerson College Polling Commissioned by New Emerson College Polling, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding. - 🔵
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.
| Jacky Rosen 50.0 · Sam Brown 38.0 | pollarch |
| 6/18/2024 | Fabrizio Ward (R)/Impact Research | 1.00 | L | 600 | — | LV | 🟡no scored polls🟡691d old+3- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
691d old Poll was fielded 691 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.
| Jacky Rosen 47.0 · Sam Brown 42.0 | pollarch |
| 5/25/2024 | The Tyson Group | 1.00 | R | 601 | — | LV | 🟡no scored polls🟡715d old+2- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
715d old Poll was fielded 715 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.
| Jacky Rosen 47.0 · Sam Brown 33.0 | pollarch |
| 5/21/2024 | Mainstreet Research/FAU | 0.85 | —(D+4.7) | 522 | — | RV | 🟡4 scored polls🟡719d old+3- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
719d old Poll was fielded 719 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 10 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.
| Jacky Rosen 48.0 · Sam Brown 35.0 | pollarch |
| 5/9/2024 | New York Times/Siena College | 0.98 | L(D+4.1) | 614 | — | RV | 🟡731d old⚪✓ verified 5d ago+3- 🟡
731d old Poll was fielded 731 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: The New York Times Commissioned by The New York Times, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding. - 🔵
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.
| Jacky Rosen 40.0 · Sam Brown 38.0 | pollarch |
| 4/29/2024 | Emerson College | 1.00 | —(D+0.7) | 1000 | — | RV | 🟡741d old⚪✓ verified 5d ago+4- 🟡
741d old Poll was fielded 741 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. - 🔵
university-sponsored: New Emerson College Polling Commissioned by New Emerson College Polling, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding. - 🔵
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.
| Jacky Rosen 45.0 · Sam Brown 37.0 | pollarch |
| 4/29/2024 | Emerson College | 1.00 | —(D+0.7) | 1000 | — | RV | 🟡741d old⚪✓ verified 5d ago+4- 🟡
741d old Poll was fielded 741 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. - 🔵
university-sponsored: New Emerson College Polling Commissioned by New Emerson College Polling, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding. - 🔵
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.
| Jacky Rosen 47.0 · Jeff Gunter 33.0 | pollarch |
| 3/15/2024 | Emerson College | 1.00 | —(D+0.7) | 1000 | — | RV | 🟡786d old⚪✓ verified 5d ago+3- 🟡
786d old Poll was fielded 786 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.
| Jacky Rosen 41.0 · Sam Brown 39.0 | pollarch |
| 3/15/2024 | Emerson College | 1.00 | —(D+0.7) | 1000 | — | RV | 🟡786d old⚪✓ verified 5d ago+3- 🟡
786d old Poll was fielded 786 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.
| Jacky Rosen 44.0 · Jim Marchant 34.0 | pollarch |
| 3/15/2024 | Emerson College | 1.00 | —(D+0.7) | 1000 | — | RV | 🟡786d old⚪✓ verified 5d ago+3- 🟡
786d old Poll was fielded 786 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.
| Jacky Rosen 43.0 · Jeff Gunter 34.0 | pollarch |
| 3/5/2024 | Noble Predictive Insights | 1.00 | —(D+3.0) | 829 | — | RV | 🟡4 scored polls🟡796d old+2- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
796d old Poll was fielded 796 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.
| Jacky Rosen 41.0 · Sam Brown 35.0 | pollarch |
| 3/5/2024 | Noble Predictive Insights | 1.00 | —(D+3.0) | 829 | — | RV | 🟡4 scored polls🟡796d old+2- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
796d old Poll was fielded 796 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.
| Jacky Rosen 43.0 · Jim Marchant 34.0 | pollarch |
| 2/19/2024 | Emerson College | 1.00 | —(D+0.7) | 1000 | — | RV | 🟡811d old⚪✓ verified 5d ago+3- 🟡
811d old Poll was fielded 811 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.
| Jacky Rosen 40.0 · Sam Brown 38.0 | pollarch |
| 2/19/2024 | Emerson College | 1.00 | —(D+0.7) | 1000 | — | RV | 🟡811d old⚪✓ verified 5d ago+3- 🟡
811d old Poll was fielded 811 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.
| Jacky Rosen 42.0 · Jim Marchant 36.0 | pollarch |
| 2/19/2024 | Emerson College | 1.00 | —(D+0.7) | 1000 | — | RV | 🟡811d old⚪✓ verified 5d ago+3- 🟡
811d old Poll was fielded 811 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.
| Jacky Rosen 43.0 · Jeff Gunter 32.0 | pollarch |
| 12/7/2023 | Change Research | 0.61 | L(D+3.7) | 2532 | — | unknown | 🟠historical bias D+3.7pt🟡885d 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. - 🟡
885d old Poll was fielded 885 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. - 🔵
n=2,532 Sample size of 2,532 respondents implies a margin of error around ±1.9pt — tighter than the ~600-respondent typical.
| Jacky Rosen 39.0 · Sam Brown 38.0 | pollarch |
| 10/26/2023 | Tarrance Group | 1.61 | —(D+0.9) | 600 | — | LV | 🟠commissioned by R-aligned: National Republican Senatorial Committee🟡3 scored polls+3- 🟠
commissioned by R-aligned: National Republican Senatorial Committee This poll was commissioned by a Republican-aligned committee, party, or PAC (National Republican Senatorial Committee). Such polls historically lean toward their sponsor. - 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
927d old Poll was fielded 927 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.
| Jacky Rosen 45.0 · Sam Brown 40.0 | pollarch |