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Maine Senate Race 2026

Latest sourced poll, full poll history, Cook and DDHQ ratings, and candidates. Research snapshot checked 2026-10-22.

Latest poll

Troy Jackson (Democrat)49%
Susan Collins (Republican)47%

InsiderAdvantage, fielded 2026-10-13 to 2026-10-14

Cook: Toss UpDDHQ: 56% D

Cook rating 2026-10-20 · DDHQ forecast 2026-10-22. Win chance, not vote share.

n=1,200 / Not reported by source. RealClearPolling

Lead of 2 pts for Troy Jackson in a single poll. Not a win probability.

Ratings and forecast

Cook rating
Toss Up
DDHQ rating
Toss Up
DDHQ Dem win chance
56%
Currently held by
R

Cook source DDHQ source Forecast methodology

Candidates

  • Troy JacksonDemocrat
  • Susan CollinsRepublican

Seat / incumbent: Collins

Poll history (29)

PollsterField datesResultsSample / methodSource
InsiderAdvantage2026-10-13 to 2026-10-14Troy Jackson (Democrat) 49%Susan Collins (Republican) 47%n=1,200 / Not reported by sourceRealClearPolling Original release
Suffolk University2026-10-08 to 2026-10-11Troy Jackson (Democrat) 49%Susan Collins (Republican) 47%n=500 / Not reported by sourceRealClearPolling Original release
Rasmussen Reports2026-10-05 to 2026-10-08Troy Jackson (Democrat) 49%Susan Collins (Republican) 47%n=804 / Not reported by sourceRealClearPolling Original release
Washington Post2026-09-30 to 2026-10-05Troy Jackson (Democrat) 50%Susan Collins (Republican) 46%n=800 / Not reported by sourceRealClearPolling Original release
Marist2026-10-01 to 2026-10-04Troy Jackson (Democrat) 51%Susan Collins (Republican) 47%n=1,505 / Not reported by sourceRealClearPolling Original release
Trafalgar Group2026-09-29 to 2026-10-01Troy Jackson (Democrat) 46%Susan Collins (Republican) 46%n=1,091 / Not reported by sourceRealClearPolling Original release
CBS News2026-09-23 to 2026-10-01Troy Jackson (Democrat) 50%Susan Collins (Republican) 50%n=1,136 / Not reported by sourceRealClearPolling Original release
co/efficient2026-09-28 to 2026-09-30Susan Collins (Republican) 48%Troy Jackson (Democrat) 46%n=1,240 / Not reported by sourceRealClearPolling Original release
MPRC2026-09-25 to 2026-09-29Troy Jackson (Democrat) 49%Susan Collins (Republican) 47%n=684 / Not reported by sourceRealClearPolling Original release
Quantus Insights2026-09-14 to 2026-09-15Susan Collins (Republican) 47.1%Troy Jackson (Democrat) 46.4%n=621 / Quantus Insights survey of 644 likely Maine voters; the reported initial Senate ballot excludes 23 respondents who said they would not vote in the race, for a reporting base of 621.Poliwave Original release
UMass Lowell2026-07-09Troy Jackson (Democrat) 47%Susan Collins (Republican) 47%n=1,000 / UnknownPoliwave
Z to A Research (D)2026-07-07 to 2026-07-08Troy Jackson (Democrat) 47%Susan Collins (Republican) 47%n=988 / UnknownPoliwave Original release
Tavern Research (D)2026-07-03 to 2026-07-06Troy Jackson (Democrat) 52%Susan Collins (Republican) 48%n=1,074 / UnknownPoliwave Original release
Beacon Research/Shaw & Co.2026-06-30Susan Collins (Republican) 50%Troy Jackson (Democrat) 47%n=1,000 / UnknownPoliwave
NYT/Siena2026-06-29Troy Jackson (Democrat) 49%Susan Collins (Republican) 47%n=800 / UnknownPoliwave
Beacon Research (D)/Shaw & Co. Research (R)2026-06-23 to 2026-06-27Susan Collins (Republican) 50%Troy Jackson (Democrat) 47%n=1,003 / UnknownPoliwave Original release
New York Times/Portland Press Herald/Siena University2026-06-19 to 2026-06-26Troy Jackson (Democrat) 49%Susan Collins (Republican) 47%n=608 / UnknownPoliwave
Wick/2WAY2026-06-11 to 2026-06-14Troy Jackson (Democrat) 48%Susan Collins (Republican) 45%n=1,008 / UnknownPoliwave Original release
Quantus Insights (R)2026-06-09 to 2026-06-11Troy Jackson (Democrat) 46%Susan Collins (Republican) 45%n=870 / UnknownPoliwave Original release
Tavern Research (D)2026-06-05 to 2026-06-08Troy Jackson (Democrat) 51%Susan Collins (Republican) 49%n=1,642 / UnknownPoliwave Original release
The Public Sentiment Institute2026-06-08Susan Collins (Republican) 44%Troy Jackson (Democrat) 43%n=497 / UnknownPoliwave
Public Policy Polling (D)2026-06-02 to 2026-06-03Troy Jackson (Democrat) 49%Susan Collins (Republican) 45%n=670 / UnknownPoliwave Original release
Fabrizio, Lee & Associates (R)2026-06-01 to 2026-06-03Troy Jackson (Democrat) 46%Susan Collins (Republican) 46%n=800 / UnknownPoliwave
UMass Lowell/YouGov2026-05-13 to 2026-05-26Troy Jackson (Democrat) 48%Susan Collins (Republican) 43%n=650 / UnknownPoliwave
University of New Hampshire2026-05-21 to 2026-05-25Troy Jackson (Democrat) 51%Susan Collins (Republican) 42%n=1,280 / UnknownPoliwave Original release
Pan Atlantic Research2026-05-08 to 2026-05-18Troy Jackson (Democrat) 48%Susan Collins (Republican) 41%n=827 / UnknownPoliwave
Maine People's Resource Center (D)2026-03-20 to 2026-03-31Troy Jackson (Democrat) 48%Susan Collins (Republican) 39%n=1,167 / UnknownPoliwave Original release
Quantus Insights (R)2026-03-05Troy Jackson (Democrat) 49%Susan Collins (Republican) 42%n=800 / UnknownPoliwave Original release
Fabrizio, Lee & Associates (R)2026-01-20 to 2026-01-24Susan Collins (Republican) 45%Troy Jackson (Democrat) 44%n=800 / UnknownPoliwave Original release

Polls via secondary aggregators, not independently audited. Not a live feed.

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