PollResults.org · Maine

2026 Maine Senate Race Polls

Polls tracking the 2026 U.S. Senate race in Maine. Data is synced from the New York Times, which aggregates surveys from major pollsters active in the state.

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In the most recent Maine Senate race poll (Emerson College, Oct 31 - Nov 1, 2026, n=600 LV), Collins (Susan M.) (R) leads Jackson (Troy) (D) 50.6%–49.4%.

Data is synced continuously from the New York Times, which aggregates surveys from major pollsters. The table shows individual pollster results. The map uses the same 2026 non-partisan polling average and candidate-selection method as the homepage maps.

At a glance

Polls tracked
66
Pollsters
35
Field dates
Mar 25, 2025 – Nov 1, 2026
Stages
General election (59), Primary (7)
Most recent poll
Nov 1, 2026
Maine: D +3.1
Maine · D +3.1 2026 non-partisan polling · 29 polls

All polls

PollsterPartisanField datesStageSampleResultsMarginSource
Emerson CollegeOct 31 - Nov 1, 2026General electionn=600 LV
Collins (Susan M.) (R): 50.6%
Jackson (Troy) (D): 49.4%
R+1.2%link
AtlasIntelOct 28 - Nov 1, 2026General electionn=967 LV
Jackson (Troy) (D): 53.1%
Collins (Susan M.) (R): 44%
Would not vote: 2.1%
D+9.1%link
The New York Times/Siena UniversityOct 27 - Nov 1, 2026General electionn=714 LV
Jackson (Troy) (D): 50.9%
Collins (Susan M.) (R): 45%
Don't know: 3.8%
D+5.9%link
Survey 160Oct 27 - Nov 1, 2026General electionn=1322 LV
Jackson (Troy) (D): 50%
Collins (Susan M.) (R): 47%
Don't know: 2%
D+3%link
University of New HampshireOct 27 - 31, 2026General electionn=1633 LV
Jackson (Troy) (D): 54%
Collins (Susan M.) (R): 45%
Don't know: 0%
D+9%link
YouGovOct 26 - 29, 2026General electionn=1501 LV
Jackson (Troy) (D): 52%
Collins (Susan M.) (R): 47%
Would not vote: 0%
D+5%link
Data for ProgressOct 23 - 27, 2026General electionn=652 LV
Jackson (Troy) (D): 50%
Collins (Susan M.) (R): 45%
Don't know: 4%
D+5%link
CNN/SSRSOct 20 - 26, 2026General electionn=783 LV
Jackson (Troy) (D): 49%
Collins (Susan M.) (R): 45%
Neither: 4%
D+4%link
Marist UniversityOct 22 - 25, 2026General electionn=1449 RV
Jackson (Troy) (D): 53%
Collins (Susan M.) (R): 44%
Don't know: 2%
D+9%link
Trafalgar GroupRepOct 21 - 23, 2026General electionn=1077 LV
Collins (Susan M.) (R): 47%
Jackson (Troy) (D): 46.5%
Don't know: 6.5%
R+0.5%link
Echelon InsightsOct 16 - 23, 2026General electionn=413 LV
Jackson (Troy) (D): 51%
Collins (Susan M.) (R): 44%
Don't know: 4%
D+7%link
Beacon Research/Shaw & Company ResearchOct 16 - 20, 2026General electionn=1689 RV
Jackson (Troy) (D): 50%
Collins (Susan M.) (R): 48%
Don't know: 2%
D+2%link
InsiderAdvantageOct 13 - 14, 2026General electionn=1200 LV
Jackson (Troy) (D): 49.3%
Collins (Susan M.) (R): 46.8%
Don't know: 3.9%
D+2.5%link
Suffolk UniversityOct 8 - 11, 2026General electionn=500 LV
Jackson (Troy) (D): 49%
Collins (Susan M.) (R): 47%
Don't know: 4%
D+2%link
The Washington Post/George Mason University Schar School of Policy and GovernmentSep 30 - Oct 5, 2026General electionn=800 LV
Jackson (Troy) (D): 50%
Collins (Susan M.) (R): 46%
Don't know: 3%
D+4%link
Marist UniversityOct 1 - 4, 2026General electionn=1505 RV
Jackson (Troy) (D): 51%
Collins (Susan M.) (R): 47%
Don't know: 1%
D+4%link
Trafalgar GroupRepSep 29 - Oct 1, 2026General electionn=1091 LV
Jackson (Troy) (D): 46.2%
Collins (Susan M.) (R): 45.9%
Don't know: 7.9%
D+0.3%link
YouGovSep 23 - Oct 1, 2026General electionn=1136 LV
Collins (Susan M.) (R): 50%
Jackson (Troy) (D): 50%
Don't know: 0%
TIElink
co/efficientSep 28 - 30, 2026General electionn=1240 LV
Collins (Susan M.) (R): 48%
Jackson (Troy) (D): 46%
Don't know: 6%
R+2%link
Maine People's Resource CenterSep 25 - 29, 2026General electionn=684 LV
Jackson (Troy) (D): 49.3%
Collins (Susan M.) (R): 46.5%
Don't know: 4.2%
D+2.8%link
InsiderAdvantageSep 22 - 23, 2026General electionn=1200 LV
Jackson (Troy) (D): 46.4%
Collins (Susan M.) (R): 45.6%
Don't know: 5.4%
D+0.8%link
Fabrizio Ward/Impact ResearchSep 20 - 22, 2026General electionn=982 LV
Jackson (Troy) (D): 50%
Collins (Susan M.) (R): 47%
Don't know: 3%
D+3%link
The New York Times/Siena UniversitySep 15 - 22, 2026General electionn=619 LV
Collins (Susan M.) (R): 48.66%
Jackson (Troy) (D): 45.92%
Don't know: 4.91%
R+2.7%link
University of New HampshireSep 17 - 21, 2026General electionn=1301 LV
Jackson (Troy) (D): 51%
Collins (Susan M.) (R): 47%
Don't know: 1%
D+4%link
Quantus InsightsSep 14 - 15, 2026General electionn=621 LV
Collins (Susan M.) (R): 47.6%
Jackson (Troy) (D): 47.4%
Don't know: 3.5%
R+0.2%link
University of Massachusetts Lowell Center for Public Opinion/YouGovAug 28 - Sep 14, 2026General electionn=650 LV
Jackson (Troy) (D): 48%
Collins (Susan M.) (R): 43%
Don't know: 6%
D+5%link
YouGovSep 2 - 8, 2026General electionn=1335 LV
Jackson (Troy) (D): 48%
Collins (Susan M.) (R): 44%
Don't know: 6%
D+4%link
CNN/SSRSAug 31 - Sep 6, 2026General electionn=880 LV
Jackson (Troy) (D): 48%
Collins (Susan M.) (R): 45%
Neither: 4%
D+3%link
Abacus DataAug 26 - 28, 2026General electionn=327 LV
Jackson (Troy) (D): 50%
Collins (Susan M.) (R): 42%
Don't know: 4%
D+8%link
Beacon Research/Shaw & Company ResearchAug 6 - 10, 2026General electionn=1000 RV
Jackson (Troy) (D): 48%
Collins (Susan M.) (R): 46%
Don't know: 4%
D+2%link
Hart Research AssociatesDemJul 27 - Aug 1, 2026General electionn=802 LV
Jackson (Troy) (D): 49%
Collins (Susan M.) (R): 45%
Don't know: 6%
D+4%link
University of New HampshireJul 15 - 20, 2026General electionn=1178 LV
Jackson (Troy) (D): 49%
Collins (Susan M.) (R): 46%
Don't know: 3%
D+3%link
Public Policy PollingDemJul 7 - 7, 2026General electionn=785 RV
Collins (Susan M.) (R): 48%
Mills (D): 37%
Don't know: 15%
R+11%link
Tavern ResearchJul 3 - 6, 2026General electionn=1074 LV
Platner (D): 52%
Collins (Susan M.) (R): 48%
D+4%link
Beacon Research/Shaw & Company ResearchJun 23 - 27, 2026General electionn=1003 RV
Collins (Susan M.) (R): 50%
Platner (D): 47%
R+3%link
The New York Times/Siena UniversityJun 19 - 26, 2026General electionn=608 LV
Platner (D): 49.2%
Collins (Susan M.) (R): 47.02%
Don't know: 3.46%
D+2.2%link
WickJun 11 - 14, 2026General electionn=1008 LV
Platner (D): 47.6%
Collins (Susan M.) (R): 45.4%
Don't know: 7%
D+2.2%link
Quantus InsightsJun 9 - 11, 2026General electionn=870 LV
Platner (D): 46%
Collins (Susan M.) (R): 45%
Don't know: 7%
D+1%link
Tavern ResearchJun 5 - 8, 2026General electionn=1642 LV
Democrat (D): 55%
Collins (Susan M.) (R): 45%
D+10%link
Tavern ResearchJun 5 - 5, 2026Primaryn=704 LV
Platner (D): 72%
Democrat (D): 28%
+44%link
Public Policy PollingDemJun 2 - 3, 2026General electionn=670 RV
Platner (D): 49%
Collins (Susan M.) (R): 45%
Don't know: 6%
D+4%link
Fabrizio, Lee & AssociatesRepJun 1 - 3, 2026General electionn=800 LV
Platner (D): 46%
Collins (Susan M.) (R): 46%
Don't know: 8%
TIElink
University of Massachusetts Lowell Center for Public Opinion/YouGovMay 13 - 26, 2026General electionn=650 LV
Platner (D): 48%
Collins (Susan M.) (R): 43%
Don't know: 6%
D+5%link
University of New HampshireMay 21 - 25, 2026General electionn=1250 LV
Platner (D): 51%
Collins (Susan M.) (R): 42%
Don't know: 6%
D+9%link
Pan Atlantic SMS GroupDemMay 8 - 18, 2026General electionn=827 LV
Platner (D): 48%
Collins (Susan M.) (R): 41%
Don't know: 11%
D+7%link
Workbench StrategyDemApr 6 - 9, 2026Primaryn=600 LV
Platner (D): 64%
Mills (D): 29%
DK/Someone else: 7%
+35%link
Echelon InsightsApr 3 - 9, 2026General electionn=378 LV
Mills (D): 48%
Collins (Susan M.) (R): 46%
Don't know: 6%
D+2%link
Maine People's Resource CenterMar 20 - 31, 2026General electionn=1167 LV
Collins (Susan M.) (R): 45%
Mills (D): 41.9%
Don't know: 13.1%
R+3.1%link
Impact ResearchDemMar 19 - 23, 2026Primaryn=500 LV
Platner (D): 66%
Mills (D): 28%
+38%link
Emerson CollegeMar 21 - 23, 2026General electionn=1075 LV
Mills (D): 46.2%
Collins (Susan M.) (R): 42.5%
Someone else: 8%
D+3.7%link
OnMessage Inc.Mar 3 - 8, 2026General electionn=600 LV
Platner (D): 44%
Collins (Susan M.) (R): 42%
Don't know: 14%
D+2%link
Quantus InsightsMar 3 - 5, 2026General electionn=800 LV
Platner (D): 48.6%
Collins (Susan M.) (R): 41.8%
Don't know: 5.9%
D+6.8%link
Pan Atlantic SMS GroupFeb 13 - Mar 2, 2026General electionn=810 LV
Platner (D): 44%
Collins (Susan M.) (R): 40%
Don't know: 16%
D+4%link
University of New HampshireFeb 12 - 16, 2026General electionn=1105 LV
Platner (D): 49%
Collins (Susan M.) (R): 38%
Don't know: 9%
D+11%link
Fabrizio, Lee & AssociatesRepJan 20 - 24, 2026General electionn=800 LV
Collins (Susan M.) (R): 45%
Mills (D): 44%
Don't know: 11%
R+1%link
Workbench StrategyDemDec 11 - 16, 2025General electionn=900 LV
Collins (Susan M.) (R): 51.4%
Mills (D): 48.6%
R+2.8%link
Pan Atlantic SMS GroupNov 29 - Dec 7, 2025General electionn=820 LV
Platner (D): 43%
Collins (Susan M.) (R): 42%
Don't know: 15%
D+1%link
Z to A ResearchDemNov 14 - 18, 2025Primaryn=845 LV
Platner (D): 58%
Mills (D): 38%
Don't know: 2%
+20%link
Cygnal PoliticalNov 10 - 11, 2025General electionn=600 LV
Democrat (D): 49%
Collins (Susan M.) (R): 41%
Don't know: 11%
D+8%link
Maine People's Resource CenterOct 26 - 29, 2025General electionn=783 RV
Collins (Susan M.) (R): 45.8%
Mills (D): 41.7%
Don't know: 12.5%
R+4.1%link
NRSCOct 22 - 23, 2025Primaryn=647 LV
Platner (D): 46.2%
Don't know: 26.2%
Mills (D): 24.8%
+21.4%link
University of New HampshireOct 16 - 21, 2025Primaryn=408 LV
Collins (Susan M.) (R): 66%
Don't know: 27%
Someone else: 4%
+65%link
Zenith ResearchOct 7 - 10, 2025General electionn=501 LV
Mills (D): 42%
Collins (Susan M.) (R): 37%
Don't know: 12%
D+5%link
Public Policy PollingDemSep 8 - 9, 2025General electionn=642 RV
Kleban (D): 44%
Collins (Susan M.) (R): 35%
Don't know: 21%
D+9%link
NRSCJul 4 - 7, 2025Primaryn=579 LV
Don't know: 51%
Mills (D): 32%
Wood (D): 18%
+14%link
Upswing ResearchDemMar 21 - 25, 2025General electionn=600 LV
Collins (Susan M.) (R): 43%
Wood (D): 42%
Don't know: 15%
R+1%link

66 of 66 polls shown, most recent first. Every number is a single pollster's reported result — no polling average is calculated here. Partisan shows the source’s party flag; a blank means no partisan affiliation is marked.