Incumbent Democrat Laura Gillen seeks re-election in New York’s 4th congressional district, a Nassau County seat on Long Island with a D+2 Cook Partisan Voting Index. Gillen flipped the district from Republican control in 2024 and faced no Democratic primary opposition in June 2026. Republican nominee Jeanine Driscoll, Hempstead Town Receiver of Taxes, won her party’s primary by a wide margin but enters the November general election as the challenger in a district where Democratic enrollment edges out Republican registration. Forecasters rate the contest Lean Democratic or Tilt Democratic, citing structural advantages for the incumbent and limited recent polling shifts. Traders price the Democratic nominee as the clear favorite, reflecting the district’s partisan lean and incumbency edge ahead of the general election.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedNY-04 House Election Winner
Democratic Party
87%
Republican Party
15%
Democratic Party
87%
Republican Party
15%
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: Dec 16, 2025, 12:27 PM 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 Democrat Laura Gillen seeks re-election in New York’s 4th congressional district, a Nassau County seat on Long Island with a D+2 Cook Partisan Voting Index. Gillen flipped the district from Republican control in 2024 and faced no Democratic primary opposition in June 2026. Republican nominee Jeanine Driscoll, Hempstead Town Receiver of Taxes, won her party’s primary by a wide margin but enters the November general election as the challenger in a district where Democratic enrollment edges out Republican registration. Forecasters rate the contest Lean Democratic or Tilt Democratic, citing structural advantages for the incumbent and limited recent polling shifts. Traders price the Democratic nominee as the clear favorite, reflecting the district’s partisan lean and incumbency edge ahead of the general election.
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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