| 10/31/2018 | Emerson College | 1.00 | —(D+0.7) | 1013 | ±3.2 | unknown | 🟡2748d old🔵tracks editorial consensus+1- 🟡
2748d old Poll was fielded 2748 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🔵
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.
| Joe Manchin 47.0 · Patrick Morrisey 42.0 · Rusty Hollen 3.0 | pollarch |
| 10/30/2018 | Research America Inc. | 1.00 | — | 400 | ±4.9 | unknown | 🟡no scored polls🟡2749d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2749d old Poll was fielded 2749 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 45.0 · Patrick Morrisey 40.0 · Rusty Hollen 11.0 | pollarch |
| 10/19/2018 | Strategic Research Associates | 0.73 | —(D+3.7) | 650 | ±3.8 | unknown | 🟡3 scored polls🟡2760d old- 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
2760d old Poll was fielded 2760 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 52.0 · Patrick Morrisey 36.0 · Rusty Hollen 4.0 | pollarch |
| 10/18/2018 | Fabrizio, Lee and Associates (R-NRSC) | 1.00 | — | 600 | ±4.0 | unknown | 🟡no scored polls🟡2761d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2761d old Poll was fielded 2761 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 42.0 · Patrick Morrisey 44.0 · Rusty Hollen 3.0 | pollarch |
| 10/15/2018 | Vox Populi Polling | 0.96 | —(D+1.9) | 789 | ±3.5 | unknown | 🟡2764d old🔵tracks editorial consensus- 🟡
2764d old Poll was fielded 2764 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🔵
tracks editorial consensus Across 15 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
| Joe Manchin 53.0 · Patrick Morrisey 47.0 | pollarch |
| 10/13/2018 | The Polling Company (R-Citizens United) | 1.00 | — | 600 | ±4.0 | unknown | 🟡no scored polls🟡2766d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2766d old Poll was fielded 2766 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 49.0 · Patrick Morrisey 45.0 | pollarch |
| 10/9/2018 | Public Opinion Strategies (R-NRSC) | 1.00 | — | 600 | ±4.0 | unknown | 🟡no scored polls🟡2770d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2770d old Poll was fielded 2770 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 41.0 · Patrick Morrisey 40.0 · Rusty Hollen 8.0 | pollarch |
| 9/26/2018 | Strategic Research Associates | 0.73 | —(D+3.7) | 650 | ±3.8 | unknown | 🟡3 scored polls🟡2783d old- 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
2783d old Poll was fielded 2783 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 46.0 · Patrick Morrisey 38.0 · Rusty Hollen 3.0 | pollarch |
| 9/25/2018 | 1892 Polling (R-Morrisey) | 1.00 | — | 500 | ±4.4 | unknown | 🟡no scored polls🟡2784d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2784d old Poll was fielded 2784 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 45.0 · Patrick Morrisey 45.0 | pollarch |
| 9/25/2018 | The Tarrance Group (R-SLF) | 1.00 | — | 612 | ±4.1 | unknown | 🟡no scored polls🟡2784d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2784d old Poll was fielded 2784 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 47.0 · Patrick Morrisey 43.0 · Rusty Hollen 5.0 | pollarch |
| 9/23/2018 | Global Strategy Group (D-Manchin) | 1.00 | — | 601 | ±4.0 | unknown | 🟡no scored polls🟡2786d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2786d old Poll was fielded 2786 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 48.0 · Patrick Morrisey 36.0 · Rusty Hollen 4.0 | pollarch |
| 9/15/2018 | Emerson College | 1.00 | —(D+0.7) | 825 | ±3.5 | unknown | 🟡2794d old🔵tracks editorial consensus+1- 🟡
2794d old Poll was fielded 2794 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🔵
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.
| Joe Manchin 45.0 · Patrick Morrisey 33.0 | pollarch |
| 8/26/2018 | Harper Polling (R-35th PAC) | 1.00 | — | 600 | ±4.0 | unknown | 🟡no scored polls🟡2814d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2814d old Poll was fielded 2814 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 47.0 · Patrick Morrisey 41.0 | pollarch |
| 8/26/2018 | Research America Inc. | 1.00 | — | 404 | ±4.9 | unknown | 🟡no scored polls🟡2814d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2814d old Poll was fielded 2814 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 45.0 · Patrick Morrisey 34.0 | pollarch |
| 7/16/2018 | Trafalgar Group | 1.00 | —(R+2.1) | 1158 | ±2.9 | unknown | 🟠methodology not disclosed🟠commissioned by R-aligned: Internal R-aligned+2- 🟠
methodology not disclosed Methodology not disclosed publicly; declined to participate in AAPOR Transparency Initiative. Included for transparency rather than weight-zeroing — many forecasters still include their polls — but the methodology opacity is worth surfacing. Source: https://en.wikipedia.org/wiki/Trafalgar_Group - 🟠
commissioned by R-aligned: Internal R-aligned This poll was commissioned by a Republican-aligned committee, party, or PAC (Internal R-aligned). Such polls historically lean toward their sponsor. - 🟡
2855d old Poll was fielded 2855 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🟡
R+4.1pt vs editors Across 7 historical polls where ≥2 editorial raters had rated the race (Cook / Sabato / IE / 538 / DDHQ etc.), this pollster's D-margin averaged 4.1pt MORE R-favorable than the rater consensus. Systematic R-lean relative to conventional wisdom.
| Joe Manchin 50.0 · Patrick Morrisey 40.0 · Rusty Hollen 2.0 | pollarch |
| 7/2/2018 | SurveyMonkey/Axios | 1.00 | — | 892 | ±5.5 | unknown | 🟡no scored polls🟡2869d old+1- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2869d old Poll was fielded 2869 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🔵
newspaper-sponsored: Axios Commissioned by Axios, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding.
| Joe Manchin 53.0 · Patrick Morrisey 40.0 | pollarch |
| 6/19/2018 | Monmouth University | 1.00 | —(D+5.0) | 653 | ±3.8 | unknown | 🟠historical bias D+5.0pt🟡2882d old+1- 🟠
historical bias D+5.0pt Across 19 historical scored polls the average error vs. actual margin is D+5.0pt — a measurable house effect. - 🟡
2882d old Poll was fielded 2882 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🔵
tracks editorial consensus Across 30 historical paired polls, this pollster's D-margins track the rater consensus (Cook / Sabato / IE / 538 / DDHQ etc.) with high correlation (r ≥ 0.85) and small mean delta (|Δ| ≤ 2pt). Their results align with conventional wisdom.
| Joe Manchin 48.0 · Patrick Morrisey 39.0 | pollarch |
| 6/13/2018 | Public Policy Polling | 1.00 | —(D+1.1) | 633 | — | unknown | 🟡2888d old🟡uncorrelated with editorial consensus+1- 🟡
2888d old Poll was fielded 2888 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🟡
uncorrelated with editorial consensus Across 368 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results. - 🔵
bias D+1.1pt Across 72 historical scored polls the average error vs. actual margin is D+1.1pt.
| Joe Manchin 46.0 · Patrick Morrisey 35.0 | pollarch |
| 5/22/2018 | Gravis Marketing | 0.72 | L(D+2.9) | 543 | ±4.2 | unknown | 🟡bias D+2.9pt🟡2910d old+1- 🟡
bias D+2.9pt Across 33 historical scored polls the average error vs. actual margin is D+2.9pt. - 🟡
2910d old Poll was fielded 2910 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🟡
uncorrelated with editorial consensus Across 49 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results.
| Joe Manchin 51.0 · Patrick Morrisey 39.0 | pollarch |
| 5/16/2018 | Hart Research Associates (D-DSCC) | 1.00 | — | 602 | ±4.0 | unknown | 🟡no scored polls🟡2916d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2916d old Poll was fielded 2916 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 52.0 · Patrick Morrisey 40.0 | pollarch |
| 5/16/2018 | Global Strategy Group (D-Manchin) | 1.00 | — | 600 | ±4.0 | unknown | 🟡no scored polls🟡2916d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2916d old Poll was fielded 2916 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 50.0 · Patrick Morrisey 42.0 | pollarch |
| 5/10/2018 | WPA Intelligence | 1.00 | R | 400 | ±4.9 | unknown | 🟠commissioned by R-aligned: Internal R-aligned🟡no scored polls+1- 🟠
commissioned by R-aligned: Internal R-aligned This poll was commissioned by a Republican-aligned committee, party, or PAC (Internal R-aligned). Such polls historically lean toward their sponsor. - 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2922d old Poll was fielded 2922 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 44.0 · Patrick Morrisey 46.0 | pollarch |
| 4/19/2018 | National Research Inc. (R-GOPAC) | 1.00 | — | — | — | unknown | 🟡no scored polls🟡2943d old+1- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2943d old Poll was fielded 2943 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - ⚪
n unknown Pollster did not publish a sample size for this poll.
| Joe Manchin 37.0 | pollarch |
| 3/5/2018 | SurveyMonkey/Axios | 1.00 | — | 1591 | ±3.5 | unknown | 🟡no scored polls🟡2988d old+2- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
2988d old Poll was fielded 2988 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🔵
newspaper-sponsored: Axios Commissioned by Axios, an independent media or academic sponsor. Independent sponsorship doesn't guarantee accuracy but rules out direct campaign funding. - 🔵
n=1,591 Sample size of 1,591 respondents implies a margin of error around ±2.5pt — tighter than the ~600-respondent typical.
| Joe Manchin 43.0 | pollarch |
| 9/30/2017 | Zogby Analytics | 1.00 | —(D+4.0) | 320 | ±5.5 | unknown | 🟡3 scored polls🟡n=320+1- 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
n=320 Sample size of 320 respondents implies a margin of error around ±5.5pt — wider than typical. - 🟡
3144d old Poll was fielded 3144 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 45.0 · Patrick Morrisey 38.0 | pollarch |
| 9/30/2017 | Zogby Analytics | 1.00 | —(D+4.0) | 320 | ±5.5 | unknown | 🟡3 scored polls🟡n=320+1- 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
n=320 Sample size of 320 respondents implies a margin of error around ±5.5pt — wider than typical. - 🟡
3144d old Poll was fielded 3144 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 49.0 · Evan Jenkins 36.0 | pollarch |
| 9/30/2017 | Zogby Analytics | 1.00 | —(D+4.0) | 320 | ±5.5 | unknown | 🟡3 scored polls🟡n=320+1- 🟡
3 scored polls Pollster has only 3 historical polls with a known outcome to score against — too few for stable accuracy estimates. - 🟡
n=320 Sample size of 320 respondents implies a margin of error around ±5.5pt — wider than typical. - 🟡
3144d old Poll was fielded 3144 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 49.0 · Alex Mooney 35.0 | pollarch |
| 8/20/2017 | Research America Inc. | 1.00 | — | 400 | ±4.9 | unknown | 🟡no scored polls🟡3185d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3185d old Poll was fielded 3185 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 51.0 · Patrick Morrisey 37.0 | pollarch |
| 8/20/2017 | Research America Inc. | 1.00 | — | 400 | ±4.9 | unknown | 🟡no scored polls🟡3185d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3185d old Poll was fielded 3185 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 50.0 · Evan Jenkins 40.0 | pollarch |
| 11/17/2016 | Harper Polling | 1.00 | — | 500 | ±4.4 | unknown | 🟡no scored polls🟡3461d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3461d old Poll was fielded 3461 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 57.0 · Patrick Morrisey 35.0 | pollarch |
| 11/17/2016 | Harper Polling | 1.00 | — | 500 | ±4.4 | unknown | 🟡no scored polls🟡3461d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3461d old Poll was fielded 3461 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 51.0 · Evan Jenkins 39.0 | pollarch |
| 11/17/2016 | Harper Polling | 1.00 | — | 500 | ±4.4 | unknown | 🟡no scored polls🟡3461d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3461d old Poll was fielded 3461 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 58.0 · Alex Mooney 28.0 | pollarch |
| 11/17/2016 | Harper Polling | 1.00 | — | 500 | ±4.4 | unknown | 🟡no scored polls🟡3461d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3461d old Poll was fielded 3461 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Joe Manchin 54.0 · David McKinley 34.0 | pollarch |
| 11/17/2016 | Harper Polling | 1.00 | — | 500 | ±4.4 | unknown | 🟡no scored polls🟡3461d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3461d old Poll was fielded 3461 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Carte Goodwin 36.0 · David McKinley 42.0 | pollarch |
| 11/17/2016 | Harper Polling | 1.00 | — | 500 | ±4.4 | unknown | 🟡no scored polls🟡3461d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3461d old Poll was fielded 3461 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Carte Goodwin 41.0 · Alex Mooney 31.0 | pollarch |
| 11/17/2016 | Harper Polling | 1.00 | — | 500 | ±4.4 | unknown | 🟡no scored polls🟡3461d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3461d old Poll was fielded 3461 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Carte Goodwin 31.0 · Evan Jenkins 43.0 | pollarch |
| 11/17/2016 | Harper Polling | 1.00 | — | 500 | ±4.4 | unknown | 🟡no scored polls🟡3461d old- 🟡
no scored polls Pollster has no historical polls with a known outcome in our database, so accuracy and bias cannot be measured. - 🟡
3461d old Poll was fielded 3461 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average.
| Carte Goodwin 39.0 · Patrick Morrisey 43.0 | pollarch |
| 5/1/2016 | Public Policy Polling | 1.00 | —(D+1.1) | 1201 | ±2.8 | unknown | 🟡3661d old🟡uncorrelated with editorial consensus+1- 🟡
3661d old Poll was fielded 3661 days ago. Older polls reflect an earlier state of the race and are weighted down in the rolling average. - 🟡
uncorrelated with editorial consensus Across 368 historical paired polls, this pollster's margins don't track the editorial consensus (Pearson r < 0.5). Independence from consensus is informational — could indicate genuine methodological independence or noisy results. - 🔵
bias D+1.1pt Across 72 historical scored polls the average error vs. actual margin is D+1.1pt.
| Joe Manchin 46.0 · David McKinley 36.0 | pollarch |