The open MA-06 House seat, vacated by incumbent Seth Moulton for a 2026 Senate primary challenge against Ed Markey, drives trader consensus to a commanding 93% implied probability for the Democratic Party, reflecting the district's Solid Democratic rating (Cook PVI D+11) and historical dominance—Democrats won 98% in 2024 and over 60% in prior cycles amid heavy voter registration advantages. A crowded Democratic primary on September 1 features fundraisers like Dan Koh and Tram Nguyen, while Republicans field a thin slate with Micah Jones and John Field, showing no competitive momentum. Absent a fractured primary yielding a weakened nominee, major GOP recruitment, national midterm Republican wave, or late scandals, this positioning remains stable.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMA-06 House Election Winner
MA-06 House Election Winner
$14,745 Vol.
$14,745 Vol.
Democratic Party
94%
Republican Party
3%
$14,745 Vol.
$14,745 Vol.
Democratic Party
94%
Republican Party
3%
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...The open MA-06 House seat, vacated by incumbent Seth Moulton for a 2026 Senate primary challenge against Ed Markey, drives trader consensus to a commanding 93% implied probability for the Democratic Party, reflecting the district's Solid Democratic rating (Cook PVI D+11) and historical dominance—Democrats won 98% in 2024 and over 60% in prior cycles amid heavy voter registration advantages. A crowded Democratic primary on September 1 features fundraisers like Dan Koh and Tram Nguyen, while Republicans field a thin slate with Micah Jones and John Field, showing no competitive momentum. Absent a fractured primary yielding a weakened nominee, major GOP recruitment, national midterm Republican wave, or late scandals, this positioning remains stable.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions