| 11/6/2022 | Phillips Academy | 0.79 | —(R+1.2) | 1056 | — | LV | 🟡4 scored polls🟡1281d old+2- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1281d old Poll was fielded 1281 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
likely-voter screen Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
| Maggie Hassan 48.0 · Don Bolduc 45.0 | pollarch |
| 11/6/2022 | University of New Hampshire | 1.00 | —(R+0.9) | 2077 | — | LV | 🟡1281d old🟡high variance vs editorial consensus+4- 🟡
1281d old Poll was fielded 1281 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt. - 🔵
n=2,077 Sample size of 2,077 respondents implies a margin of error around ±2.2pt — tighter than the ~600-respondent typical.
| Maggie Hassan 50.0 · Don Bolduc 48.0 | pollarch |
| 11/5/2022 | InsiderAdvantage | 0.92 | R(R+2.6) | 700 | — | LV | 🟡bias R+2.6pt🟡1282d old+3- 🟡
bias R+2.6pt Across 33 historical scored polls the average error vs. actual margin is R+2.6pt. - 🟡
1282d old Poll was fielded 1282 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
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.
| Maggie Hassan 49.0 · Don Bolduc 48.0 | pollarch |
| 11/5/2022 | Data for Progress | 1.00 | —(D+1.0) | 1995 | — | LV | 🟡1282d old🟡high variance vs editorial consensus+4- 🟡
1282d old Poll was fielded 1282 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. - 🔵
n=1,995 Sample size of 1,995 respondents implies a margin of error around ±2.2pt — tighter than the ~600-respondent typical. - 🟢
accurate · bias D+1.0pt Across 50 historical scored polls this pollster's average error vs. actual margin is D+1.0pt — within ±1pt.
| Maggie Hassan 50.0 · Don Bolduc 47.0 | pollarch |
| 11/5/2022 | Wick Insights | 0.74 | R(R+4.0) | 725 | — | LV | 🟡1282d old⚪✓ verified 5d ago+2- 🟡
1282d old Poll was fielded 1282 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
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 17 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.
| Maggie Hassan 48.0 · Don Bolduc 48.0 | pollarch |
| 11/1/2022 | Emerson College | 1.00 | —(D+0.7) | 850 | — | LV | 🟡1286d old⚪✓ verified 5d ago+3- 🟡
1286d old Poll was fielded 1286 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
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.
| Maggie Hassan 49.0 · Don Bolduc 45.0 | pollarch |
| 11/1/2022 | The Trafalgar Group | 0.89 | R(R+3.4) | 1241 | — | LV | 🟠historical bias R+3.4pt🟡1286d 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. - 🟡
1286d old Poll was fielded 1286 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
likely-voter screen Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
| Maggie Hassan 46.0 · Don Bolduc 47.0 | pollarch |
| 10/29/2022 | Saint Anselm College | 0.81 | —(R+1.7) | 1541 | — | LV | 🟡4 scored polls🟡1289d old+4- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1289d old Poll was fielded 1289 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
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=1,541 Sample size of 1,541 respondents implies a margin of error around ±2.5pt — tighter than the ~600-respondent typical. - 🔵
tracks editorial consensus Across 20 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.
| Maggie Hassan 47.0 · Don Bolduc 48.0 | pollarch |
| 10/26/2022 | co/efficient | 0.71 | R(R+5.4) | 1098 | — | LV | 🟠historical bias R+5.4pt🟡1292d old+3- 🟠
historical bias R+5.4pt Across 12 historical scored polls the average error vs. actual margin is R+5.4pt — a measurable house effect. - 🟡
1292d old Poll was fielded 1292 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🟡
R+4.4pt vs editors Across 18 historical polls where ≥2 editorial raters had rated the race (Cook / Sabato / IE / 538 / DDHQ etc.), this pollster's D-margin averaged 4.4pt 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.
| Maggie Hassan 45.0 · Don Bolduc 45.0 | pollarch |
| 10/25/2022 | UMass Lowell/YouGov | 0.93 | L(D+3.4) | 600 | — | LV | 🟡1293d old⚪✓ verified 5d ago+1- 🟡
1293d old Poll was fielded 1293 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
likely-voter screen Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
| Maggie Hassan 51.0 · Don Bolduc 41.0 | pollarch |
| 10/23/2022 | InsiderAdvantage | 0.92 | R(R+2.6) | 600 | — | LV | 🟡bias R+2.6pt🟡1295d old+3- 🟡
bias R+2.6pt Across 33 historical scored polls the average error vs. actual margin is R+2.6pt. - 🟡
1295d old Poll was fielded 1295 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
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.
| Maggie Hassan 48.0 · Don Bolduc 47.0 | pollarch |
| 10/19/2022 | Emerson College | 1.00 | —(D+0.7) | 727 | — | LV | 🟡1299d old⚪✓ verified 5d ago+3- 🟡
1299d old Poll was fielded 1299 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
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.
| Maggie Hassan 48.0 · Don Bolduc 45.0 | pollarch |
| 10/19/2022 | Fabrizio, Lee & Associates | 1.00 | R | 600 | — | LV | 🟡no scored polls🟡1299d old+3- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
1299d old Poll was fielded 1299 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.
| Maggie Hassan 49.0 · Don Bolduc 47.0 | pollarch |
| 10/19/2022 | Data for Progress | 1.00 | —(D+1.0) | 1392 | — | LV | 🟡1299d old🟡high variance vs editorial consensus+3- 🟡
1299d old Poll was fielded 1299 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.
| Maggie Hassan 50.0 · Don Bolduc 44.0 | pollarch |
| 10/6/2022 | Fabrizio Ward (R)/Impact Research | 1.00 | L | 500 | — | LV | 🟡no scored polls🟡1312d old+3- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
1312d old Poll was fielded 1312 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
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.
| Maggie Hassan 52.0 · Don Bolduc 45.0 | pollarch |
| 9/30/2022 | The Trafalgar Group | 0.89 | R(R+3.4) | 1081 | — | LV | 🟠historical bias R+3.4pt🟡1318d 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. - 🟡
1318d old Poll was fielded 1318 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
likely-voter screen Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
| Maggie Hassan 48.0 · Don Bolduc 45.0 | pollarch |
| 9/30/2022 | Data for Progress | 1.00 | —(D+1.0) | 1147 | — | LV | 🟡1318d old🟡high variance vs editorial consensus+3- 🟡
1318d old Poll was fielded 1318 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.
| Maggie Hassan 50.0 · Don Bolduc 43.0 | pollarch |
| 9/28/2022 | Saint Anselm College | 0.81 | —(R+1.7) | 901 | — | RV | 🟡4 scored polls🟡1320d old+3- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1320d old Poll was fielded 1320 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. 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 20 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.
| Maggie Hassan 49.0 · Don Bolduc 43.0 | pollarch |
| 9/26/2022 | Suffolk University | 1.44 | neutral(D+0.1) | 500 | — | LV | 🟡1322d old⚪✓ verified 5d ago+3- 🟡
1322d old Poll was fielded 1322 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
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.
| Maggie Hassan 50.0 · Don Bolduc 41.0 | pollarch |
| 9/19/2022 | American Research Group | 1.00 | —(D+1.1) | 555 | — | RV | 🟡3 scored polls🟡1329d old+3- 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1329d old Poll was fielded 1329 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 6 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.
| Maggie Hassan 53.0 · Don Bolduc 40.0 | pollarch |
| 9/19/2022 | University of New Hampshire | 1.00 | —(R+0.9) | 870 | — | LV | 🟡1329d old🟡high variance vs editorial consensus+3- 🟡
1329d old Poll was fielded 1329 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt.
| Maggie Hassan 49.0 · Don Bolduc 41.0 | pollarch |
| 9/15/2022 | Emerson College | 1.00 | —(D+0.7) | 800 | — | LV | 🟡1333d old⚪✓ verified 5d ago+4- 🟡
1333d old Poll was fielded 1333 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
likely-voter screen Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls. - 🔵
university-sponsored: The first Emerson College Commissioned by The first Emerson College, 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.
| Maggie Hassan 51.0 · Don Bolduc 40.0 | pollarch |
| 7/8/2022 | Data for Progress | 1.00 | —(D+1.0) | 903 | — | LV | 🟡1402d old🟡high variance vs editorial consensus+3- 🟡
1402d old Poll was fielded 1402 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.
| Maggie Hassan 49.0 · Don Bolduc 45.0 | pollarch |
| 7/8/2022 | Data for Progress | 1.00 | —(D+1.0) | 903 | — | LV | 🟡1402d old🟡high variance vs editorial consensus+3- 🟡
1402d old Poll was fielded 1402 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.
| Maggie Hassan 49.0 · Chuck Morse 46.0 | pollarch |
| 7/8/2022 | Data for Progress | 1.00 | —(D+1.0) | 903 | — | LV | 🟡1402d old🟡high variance vs editorial consensus+3- 🟡
1402d old Poll was fielded 1402 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.
| Maggie Hassan 49.0 · Kevin Smith 45.0 | pollarch |
| 6/27/2022 | Change Research | 0.61 | L(D+3.7) | 704 | — | LV | 🟠historical bias D+3.7pt🟡1413d 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. - 🟡
1413d old Poll was fielded 1413 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.
| Maggie Hassan 49.0 · Don Bolduc 40.0 | pollarch |
| 4/18/2022 | University of New Hampshire | 1.00 | —(R+0.9) | 868 | — | LV | 🟡1483d old🟡high variance vs editorial consensus+3- 🟡
1483d old Poll was fielded 1483 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt.
| Maggie Hassan 47.0 · Don Bolduc 46.0 | pollarch |
| 4/18/2022 | University of New Hampshire | 1.00 | —(R+0.9) | 868 | — | LV | 🟡1483d old🟡high variance vs editorial consensus+3- 🟡
1483d old Poll was fielded 1483 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt.
| Maggie Hassan 46.0 · Bruce Fenton 40.0 | pollarch |
| 4/18/2022 | University of New Hampshire | 1.00 | —(R+0.9) | 868 | — | LV | 🟡1483d old🟡high variance vs editorial consensus+3- 🟡
1483d old Poll was fielded 1483 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt.
| Maggie Hassan 44.0 · Chuck Morse 46.0 | pollarch |
| 4/18/2022 | University of New Hampshire | 1.00 | —(R+0.9) | 868 | — | LV | 🟡1483d old🟡high variance vs editorial consensus+3- 🟡
1483d old Poll was fielded 1483 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt.
| Maggie Hassan 45.0 · Kevin Smith 44.0 | pollarch |
| 4/8/2022 | Phillips Academy | 0.79 | —(R+1.2) | 533 | — | A | 🟡4 scored polls🟡adult sample+2- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
adult sample Adult-population sample (no voter screen) — useful for general public opinion but not directly comparable to LV polls for predicting elections. - 🟡
1493d old Poll was fielded 1493 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
| Maggie Hassan 45.0 · Don Bolduc 40.0 | pollarch |
| 4/8/2022 | Phillips Academy | 0.79 | —(R+1.2) | 533 | — | A | 🟡4 scored polls🟡adult sample+2- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
adult sample Adult-population sample (no voter screen) — useful for general public opinion but not directly comparable to LV polls for predicting elections. - 🟡
1493d old Poll was fielded 1493 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched.
| Maggie Hassan 43.0 · Chuck Morse 40.0 | pollarch |
| 3/24/2022 | Saint Anselm College | 0.81 | —(R+1.7) | 1265 | — | RV | 🟡4 scored polls🟡1508d old+3- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1508d old Poll was fielded 1508 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. 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 20 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.
| Maggie Hassan 44.0 · Don Bolduc 39.0 | pollarch |
| 3/24/2022 | Saint Anselm College | 0.81 | —(R+1.7) | 1265 | — | RV | 🟡4 scored polls🟡1508d old+3- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1508d old Poll was fielded 1508 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. 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 20 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.
| Maggie Hassan 43.0 · Chuck Morse 36.0 | pollarch |
| 3/24/2022 | Saint Anselm College | 0.81 | —(R+1.7) | 1265 | — | RV | 🟡4 scored polls🟡1508d old+3- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1508d old Poll was fielded 1508 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. 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 20 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.
| Maggie Hassan 44.0 · Kevin Smith 34.0 | pollarch |
| 1/12/2022 | Saint Anselm College | 0.81 | —(R+1.7) | 1215 | — | RV | 🟡4 scored polls🟡1579d old+3- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1579d old Poll was fielded 1579 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. 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 20 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.
| Maggie Hassan 43.0 · Don Bolduc 36.0 | pollarch |
| 1/12/2022 | Saint Anselm College | 0.81 | —(R+1.7) | 1215 | — | RV | 🟠flagged on verification🟡4 scored polls+3- 🟠
flagged on verification Automated verification flagged this poll: results sum to 68.0% (expected ~100; n=2 cands, floor=70). Either the scrape misread the source table or the source itself looks unusual. Cross-check the citation URL before relying on this row. - 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1579d old Poll was fielded 1579 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
registered voters Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize. - 🔵
tracks editorial consensus Across 20 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.
| Maggie Hassan 41.0 · Chuck Morse 27.0 | pollarch |
| 1/12/2022 | Saint Anselm College | 0.81 | —(R+1.7) | 1215 | — | RV | 🟠flagged on verification🟡4 scored polls+3- 🟠
flagged on verification Automated verification flagged this poll: results sum to 66.0% (expected ~100; n=2 cands, floor=70). Either the scrape misread the source table or the source itself looks unusual. Cross-check the citation URL before relying on this row. - 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1579d old Poll was fielded 1579 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
registered voters Registered-voter sample — broader than likely-voter screens; typical for early-cycle polling before turnout signals stabilize. - 🔵
tracks editorial consensus Across 20 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.
| Maggie Hassan 42.0 · Kevin Smith 24.0 | pollarch |
| 12/12/2021 | The Trafalgar Group | 0.89 | R(R+3.4) | 1041 | — | LV | 🟠historical bias R+3.4pt🟡1610d 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. - 🟡
1610d old Poll was fielded 1610 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
likely-voter screen Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
| Maggie Hassan 46.0 · Don Bolduc 40.0 | pollarch |
| 12/12/2021 | The Trafalgar Group | 0.89 | R(R+3.4) | 1041 | — | LV | 🟠historical bias R+3.4pt🟡1610d 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. - 🟡
1610d old Poll was fielded 1610 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. Deterministic checks confirmed bounds + structure (percentages in [0,100], totals plausibly close to 100%, dates ordered). Source page itself was not re-fetched. - ⚪
likely-voter screen Likely-voter screen — pollster filters respondents by reported turnout intent. Generally tighter for predicting elections than registered- or adult-population polls.
| Maggie Hassan 46.0 · Chuck Morse 38.0 | pollarch |
| 11/18/2021 | The Tarrance Group | 3.77 | —(D+1.1) | 500 | — | LV | 🟡3 scored polls🟡1634d old+4- 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1634d old Poll was fielded 1634 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.
| Maggie Hassan 47.0 · Corky Messner 45.0 | pollarch |
| 10/22/2021 | Saint Anselm College | 0.81 | —(R+1.7) | 1323 | — | RV | 🟡4 scored polls🟡1661d old+3- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1661d old Poll was fielded 1661 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. 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 20 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.
| Maggie Hassan 41.0 · Chris Sununu 46.0 | pollarch |
| 10/18/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 979 | — | LV | 🟡1665d old🟡high variance vs editorial consensus+3- 🟡
1665d old Poll was fielded 1665 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt.
| Maggie Hassan 47.0 · Don Bolduc 42.0 | pollarch |
| 10/18/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 979 | — | LV | 🟡1665d old🟡high variance vs editorial consensus+3- 🟡
1665d old Poll was fielded 1665 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt.
| Maggie Hassan 44.0 · Kelly Ayotte 43.0 | pollarch |
| 10/18/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 979 | — | LV | 🟡1665d old🟡high variance vs editorial consensus+3- 🟡
1665d old Poll was fielded 1665 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt.
| Maggie Hassan 42.0 · Chris Sununu 45.0 | pollarch |
| 8/26/2021 | Saint Anselm College | 0.81 | —(R+1.7) | 1855 | — | RV | 🟡4 scored polls🟡1718d old+4- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1718d old Poll was fielded 1718 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. 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=1,855 Sample size of 1,855 respondents implies a margin of error around ±2.3pt — tighter than the ~600-respondent typical. - 🔵
tracks editorial consensus Across 20 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.
| Maggie Hassan 41.0 · Chris Sununu 49.0 | pollarch |
| 7/19/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 1540 | — | LV | 🟡1756d old🟡high variance vs editorial consensus+4- 🟡
1756d old Poll was fielded 1756 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt. - 🔵
n=1,540 Sample size of 1,540 respondents implies a margin of error around ±2.5pt — tighter than the ~600-respondent typical.
| Maggie Hassan 51.0 · Don Bolduc 41.0 | pollarch |
| 7/19/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 1540 | — | LV | 🟡1756d old🟡high variance vs editorial consensus+4- 🟡
1756d old Poll was fielded 1756 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt. - 🔵
n=1,540 Sample size of 1,540 respondents implies a margin of error around ±2.5pt — tighter than the ~600-respondent typical.
| Maggie Hassan 49.0 · Kelly Ayotte 45.0 | pollarch |
| 7/19/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 1540 | — | LV | 🟡1756d old🟡high variance vs editorial consensus+4- 🟡
1756d old Poll was fielded 1756 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt. - 🔵
n=1,540 Sample size of 1,540 respondents implies a margin of error around ±2.5pt — tighter than the ~600-respondent typical.
| Maggie Hassan 48.0 · Chris Sununu 49.0 | pollarch |
| 3/6/2021 | Saint Anselm College | 0.81 | —(R+1.7) | 871 | — | RV | 🟡4 scored polls🟡1891d old+3- 🟡
4 scored polls Pollster has only 4 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
1891d old Poll was fielded 1891 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
✓ verified 5d ago auto-checked on 5/4/2026. 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 20 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.
| Maggie Hassan 41.0 · Chris Sununu 47.0 | pollarch |
| 2/22/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 1676 | — | LV | 🟡1903d old🟡high variance vs editorial consensus+4- 🟡
1903d old Poll was fielded 1903 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt. - 🔵
n=1,676 Sample size of 1,676 respondents implies a margin of error around ±2.4pt — tighter than the ~600-respondent typical.
| Maggie Hassan 52.0 · Don Bolduc 39.0 | pollarch |
| 2/22/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 1676 | — | LV | 🟡1903d old🟡high variance vs editorial consensus+4- 🟡
1903d old Poll was fielded 1903 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt. - 🔵
n=1,676 Sample size of 1,676 respondents implies a margin of error around ±2.4pt — tighter than the ~600-respondent typical.
| Maggie Hassan 48.0 · Kelly Ayotte 43.0 | pollarch |
| 2/22/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 1676 | — | LV | 🟡1903d old🟡high variance vs editorial consensus+4- 🟡
1903d old Poll was fielded 1903 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt. - 🔵
n=1,676 Sample size of 1,676 respondents implies a margin of error around ±2.4pt — tighter than the ~600-respondent typical.
| Maggie Hassan 53.0 · Corey Lewandowski 34.0 | pollarch |
| 2/22/2021 | University of New Hampshire | 1.00 | —(R+0.9) | 1676 | — | LV | 🟡1903d old🟡high variance vs editorial consensus+4- 🟡
1903d old Poll was fielded 1903 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 50 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+0.9pt Across 12 historical scored polls the average error vs. actual margin is R+0.9pt. - 🔵
n=1,676 Sample size of 1,676 respondents implies a margin of error around ±2.4pt — tighter than the ~600-respondent typical.
| Maggie Hassan 46.0 · Chris Sununu 48.0 | pollarch |