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Toss-up · 2026 Senate

Maine Senate

The 2026 Maine Senate race is essentially a toss-up: Troy Jackson (D) holds a narrow 52% edge, projected to win by less than a point. Updated daily from 3 polls.

Troy Jackson (D)
52%
(R) Susan Collins
48%
Chance of winning the seatPredicted margin D+0.6

How the odds moved

Aug

VotePredictor Elections' win probability for each party, rerun from the polls available on each date — hover the chart to read any day. The dashed line is even odds.

What the markets say

Chance of a Democratic win
VotePredictor Elections model52%
Polymarket1.2M volume71%
Kalshi1.8M volume69%

Market prices are shown for comparison and are never an input to the forecast — a 2024 test found blending Polymarket in made the model's calls measurably worse. Where the two disagree, one of them is wrong, and the track record is the only way to find out which.

Why this forecast

This forecast is poll-driven: 3 polls of the race so far. After weighting them by recency and correcting each pollster's house effect, the model (TabPFN) predicts D+0.6 — a 52% Democratic win.

Latest news

Troy Jackson (D)
Susan Collins (R)

Headlines via NewsAPI, refreshed daily.

The polls behind it

3 polls · newest first
PollsterDateMargin
Beacon Research/Shaw & Co. Research2026-08-10D+2.0
Hart Research Associates2026-08-01D+4.0
University of New Hampshire2026-07-20D+3.0

Frequently asked questions

Who is winning the 2026 Maine Senate race?

VotePredictor's model favors Troy Jackson (D), with roughly a 52% chance of winning and a projected margin of D+0.6. It is close enough to be a toss-up.

What do the polls say in the Maine Senate race?

There are 3 polls of this race. The most recent, from Beacon Research/Shaw & Co. Research (2026-08-10), showed D+2.0. VotePredictor's poll-weighted projection is D+0.6.

Who are the candidates in the 2026 Maine Senate race?

Troy Jackson is the Democratic candidate; Susan Collins is the Republican.

When is the 2026 Maine Senate election?

Election Day is Tuesday, November 3, 2026. VotePredictor refreshes this forecast every day until then.

How does VotePredictor forecast the Maine Senate race?

It is a poll-driven model. Recent polls are weighted by recency and adjusted for each pollster's historical house effect, then a machine-learning model (TabPFN) trained on U.S. races from 1998–2025 turns them into a projected margin and win probability.

Which party matches you?

These candidates split on taxes, health care, guns, and abortion. See where you land — and which members of Congress actually vote like you.

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