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Which Party wins the 2026 Maine Senate Election?

Nov 7, 2026, 6:59am GMT+2, in 151 daysLast updated: Jun 9, 2026, 3:30 PM UTC

Maine Senate winner?

$1.5M

NOV 7, 2026

General Election

Voters choose the office holder.

D. Party

58.0%

R. Party

42.0%

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OddsCurrent Odds

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Total volume

$1.5M

24h volume

$19.6K

D. Party58%

R. Party42%

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source: Kalshi

Upcoming Events

June

TUE 9

Maine 2026 primary

November

TUE 3

Maine 2026 general election

Latest Insights

Maine Senate winner?

24h

Fresh AP and local reporting on new abuse allegations keeps Graham Platner under intense scrutiny days before Tuesday’s Democratic primary, reinforcing the recent Democratic-side selloff in Maine Senate markets.

Maine Senate winner?

New reporting on additional allegations against Graham Platner keeps Maine’s Democratic Senate primary under heavy scrutiny and could sustain volatility in the race as Tuesday’s vote approaches.

News

AINews Summary

A new poll makes Maine’s Senate race look competitive, with Graham Platner ahead of Janet Mills in the Democratic primary. The poll also gives Platner a slight general-election edge over Susan Collins. That keeps the party outcome market uncertain for now. The poll may modestly improve sentiment for Platner and keep the race looking competitive. It does not clearly settle which party has the edge in the general election.

Articles

SDSan Diego Union-Tribune3 months ago

Roy Cooper and Michael Whatley clinch North Carolina Senate nods, setting up high-stakes fall fight

By GARY D. ROBERTSON RALEIGH, N.C. (AP) — North Carolina’s primary will be the official starting gun for one of the country’s most closely watched U.S. Senate campaigns, likely pitting former Democratic Gov. Roy Cooper against former Republican National Committee Chairman Michael Whatley. Each candidate is the most high-profile contender for their party’s nomination, which […]

WEWashington Examiner3 months ago

Cooper vs. Whatley

Roy Cooper and Michael Whatley secure nominations in North Carolina, setting up a pivotal 2026 race that could decide control of the Senate.

SDSan Diego Union-Tribune3 months ago

Roy Cooper and Michael Whatley clinch US Senate in North Carolina, setting up high-stakes fall fight

WEWashington Examiner3 months ago

NRCC rebrands 'Young Guns' initiative with MAGA Majority candidates for 2026

The National Republican Congressional Committee debuted its latest class of recruits by embracing Trump’s MAGA movement.

NNewsweek3 months ago

Susan Collins Chances of Losing to Democrats in Maine Senate Race-New Poll

Maine’s U.S. Senate race is expected to be among the most competitive of the 2026 midterm elections.

WWEAU3 months ago

North Carolina primary could mean Roy Cooper vs Michael Whatley in pivotal fall Senate race

North Carolina’s U.S. Senate primary will set up a high-stakes race in the fall that could decide control of the chamber.

Polls

Polling Average

60%50%40%30%20%10%0%

48.4%

47.3%

44.4%

G. Platner

J. Mills

S. Collins

Date (Start - End)	Spread	Platner	Mills	Collins
Polling Average	Platner+1.1	48.4%	47.3%	44.4%
Tavern ResearchJun 5 - 8	Platner+2.0	51.0%	–	49.0%
Tavern ResearchJun 5 - 8	Mills+4.0	–	52.0%	48.0%
The Public Sentiment InstituteJun 8 - 8	Collins+0.6	43.1%	–	43.7%
Fabrizio, Lee & AssociatesJun 1 - 3	Platner+0.0	46.0%	–	46.0%
Public Policy PollingJun 2 - 3	Platner+4.0	49.0%	–	45.0%
University of Massachusetts Lowell Center for Public Opinion/YouGovMay 13 - 26	Platner+5.0	48.0%	–	43.0%
University of New Hampshire Survey CenterMay 21 - 25	Platner+9.0	51.0%	–	42.0%
Pan Atlantic ResearchMay 8 - 18	Platner+7.0	48.0%	–	41.0%
Echelon InsightsApr 3 - 9	Mills+2.0	–	48.0%	46.0%
Echelon InsightsApr 3 - 9	Platner+6.0	51.0%	–	45.0%
Maine People's Resource CenterMar 20 - 31	Platner+9.0	48.3%	–	39.3%
Maine People's Resource CenterMar 20 - 31	Collins+3.1	–	41.9%	45.0%

Aggregation source: FiftyPlusOne

New updates coming soon

We're monitoring and will update when new data impacts the race.

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Which Party wins the 2026 Maine Senate Election?

Maine Senate winner?

OddsCurrent Odds

Upcoming Events

Latest Insights

Maine Senate winner?

Maine Senate winner?

News

Roy Cooper and Michael Whatley clinch North Carolina Senate nods, setting up high-stakes fall fight

Cooper vs. Whatley

Roy Cooper and Michael Whatley clinch US Senate in North Carolina, setting up high-stakes fall fight

NRCC rebrands 'Young Guns' initiative with MAGA Majority candidates for 2026

Susan Collins Chances of Losing to Democrats in Maine Senate Race-New Poll

North Carolina primary could mean Roy Cooper vs Michael Whatley in pivotal fall Senate race

Polls

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Maine Republican Senate nominee?

Upcoming Events

Latest Insights

Maine Senate winner?

Maine Senate winner?

News

Roy Cooper and Michael Whatley clinch North Carolina Senate nods, setting up high-stakes fall fight

Cooper vs. Whatley

Roy Cooper and Michael Whatley clinch US Senate in North Carolina, setting up high-stakes fall fight

NRCC rebrands 'Young Guns' initiative with MAGA Majority candidates for 2026

Susan Collins Chances of Losing to Democrats in Maine Senate Race-New Poll

North Carolina primary could mean Roy Cooper vs Michael Whatley in pivotal fall Senate race

Polls

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Maine Democratic Senate nominee?

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Maine Republican Governor nominee?

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