Incumbent Angus King, an independent who caucuses with Democrats, maintains a strong lead in the latest polls over Republican challenger Austin Theriault, driving trader consensus to 74% for a Democratic-aligned victory in the November 5 Maine Senate race. Recent surveys, including an October 24 University of New Hampshire poll showing King ahead 52%-32%, underscore his high approval and cross-party appeal in a state that leans Democratic despite holding one Republican Senate seat. National Republican momentum has narrowed the gap slightly from summer highs, but King's incumbency advantage, prior wins under ranked-choice voting, and lack of major scandals keep probabilities firmly tilted, with early voting underway and no pivotal debates remaining.
Experimental AI-generated summary referencing Polymarket data · UpdatedMaine Senate Election Winner
Maine Senate Election Winner
$45,582 Vol.
$45,582 Vol.

Democrat
74%

Republican
26%
$45,582 Vol.
$45,582 Vol.

Democrat
74%

Republican
26%
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Market Opened: Oct 13, 2025, 5:28 PM ET
Resolver
0x2F5e3684c...A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Resolver
0x2F5e3684c...Incumbent Angus King, an independent who caucuses with Democrats, maintains a strong lead in the latest polls over Republican challenger Austin Theriault, driving trader consensus to 74% for a Democratic-aligned victory in the November 5 Maine Senate race. Recent surveys, including an October 24 University of New Hampshire poll showing King ahead 52%-32%, underscore his high approval and cross-party appeal in a state that leans Democratic despite holding one Republican Senate seat. National Republican momentum has narrowed the gap slightly from summer highs, but King's incumbency advantage, prior wins under ranked-choice voting, and lack of major scandals keep probabilities firmly tilted, with early voting underway and no pivotal debates remaining.
Experimental AI-generated summary referencing Polymarket data · Updated



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