Trader consensus favors the Republican Party at 64.5% implied probability to hold New York's 21st Congressional District, an open seat after incumbent Elise Stefanik launched a 2026 gubernatorial bid, in a Solid Republican-rated race per Cook Political Report with historical margins exceeding 60% for GOP candidates. Anthony Constantino leads the June 23 Republican primary with superior fundraising—$7.6 million raised and $3.5 million cash on hand—and a recent April 21 endorsement from former President Trump, bucking the state party's backing of Assemblyman Robert Smullen. Democrat Blake Gendebien holds a primary edge with $4.6 million raised, but faces steep structural hurdles in the rural, Trump-won district ahead of the November 3 general election.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedNY-21 House Election Winner
NY-21 House Election Winner
$22,896 Vol.
$22,896 Vol.
Republican Party
67%
Democratic Party
32%
$22,896 Vol.
$22,896 Vol.
Republican Party
67%
Democratic Party
32%
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, 11:23 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...Trader consensus favors the Republican Party at 64.5% implied probability to hold New York's 21st Congressional District, an open seat after incumbent Elise Stefanik launched a 2026 gubernatorial bid, in a Solid Republican-rated race per Cook Political Report with historical margins exceeding 60% for GOP candidates. Anthony Constantino leads the June 23 Republican primary with superior fundraising—$7.6 million raised and $3.5 million cash on hand—and a recent April 21 endorsement from former President Trump, bucking the state party's backing of Assemblyman Robert Smullen. Democrat Blake Gendebien holds a primary edge with $4.6 million raised, but faces steep structural hurdles in the rural, Trump-won district ahead of the November 3 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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