Incumbent Rep. Chellie Pingree (D) solidified her path to the Democratic nomination after challenger State Rep. Tiffany Roberts failed to qualify for the June 9 ranked-choice primary ballot on March 16 due to insufficient signatures, leaving Pingree unopposed in the safely Democratic Portland-area district. Pingree, who has held the seat since 2009 with consistent 60%+ margins, recently earned a Sierra Club endorsement amid scant Republican challengers emerging for the general election. Trader consensus prices Democrats at 92.5% implied probability, reflecting the district's partisan lean and historical base rates for incumbents in D+14 territory per Cook PVI. Late-breaking scenarios like a high-profile GOP recruit, Pingree scandal, or health event could shift odds ahead of November.
Experimental AI-generated summary referencing Polymarket data · UpdatedME-01 House Election Winner
ME-01 House Election Winner
$11,944 Vol.
$11,944 Vol.
Democratic Party
93%
Republican Party
8%
$11,944 Vol.
$11,944 Vol.
Democratic Party
93%
Republican Party
8%
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Market Opened: Jan 28, 2026, 11:09 AM ET
Resolver
0x2F5e3684c...A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Resolver
0x2F5e3684c...Incumbent Rep. Chellie Pingree (D) solidified her path to the Democratic nomination after challenger State Rep. Tiffany Roberts failed to qualify for the June 9 ranked-choice primary ballot on March 16 due to insufficient signatures, leaving Pingree unopposed in the safely Democratic Portland-area district. Pingree, who has held the seat since 2009 with consistent 60%+ margins, recently earned a Sierra Club endorsement amid scant Republican challengers emerging for the general election. Trader consensus prices Democrats at 92.5% implied probability, reflecting the district's partisan lean and historical base rates for incumbents in D+14 territory per Cook PVI. Late-breaking scenarios like a high-profile GOP recruit, Pingree scandal, or health event could shift odds ahead of November.
Experimental AI-generated summary referencing Polymarket data · Updated



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