The heavily Democratic lean of Massachusetts’ 4th congressional district continues to anchor trader expectations for a Democratic victory in the November 2026 general election. Incumbent Jake Auchincloss faces primary challengers including Christopher Boyd and Jason Poulos on September 1, yet his established position and the district’s consistent partisan voting patterns have kept Republican prospects limited following the nomination of Thomas Stalcup. Filing deadlines in early June and any late shifts in candidate fields remain the primary variables that could influence positioning, though structural advantages for the Democratic nominee have historically limited volatility in comparable Massachusetts races.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMA-04 House Election Winner
$35,118 Vol.
$35,118 Vol.
Democratic Party
94%
Republican Party
6%
$35,118 Vol.
$35,118 Vol.
Democratic Party
94%
Republican Party
6%
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 heavily Democratic lean of Massachusetts’ 4th congressional district continues to anchor trader expectations for a Democratic victory in the November 2026 general election. Incumbent Jake Auchincloss faces primary challengers including Christopher Boyd and Jason Poulos on September 1, yet his established position and the district’s consistent partisan voting patterns have kept Republican prospects limited following the nomination of Thomas Stalcup. Filing deadlines in early June and any late shifts in candidate fields remain the primary variables that could influence positioning, though structural advantages for the Democratic nominee have historically limited volatility in comparable Massachusetts races.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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