The NY-21 race centers on an open seat in a historically Republican-leaning upstate New York district following Elise Stefanik’s departure. Primaries concluded June 23, 2026, with Anthony Constantino securing the Republican nomination and Blake Gendebien the Democratic nod. The district’s partisan composition, consistent Republican performance in recent cycles, and limited Democratic infrastructure sustain the strong trader preference for the GOP nominee ahead of the November 3 general election. No major late developments have altered the baseline outlook, though turnout patterns and candidate fundraising will be monitored in the coming months.
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
$52,400 Vol.
$52,400 Vol.
Republican Party
79%
Democratic Party
19%
$52,400 Vol.
$52,400 Vol.
Republican Party
79%
Democratic Party
19%
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...The NY-21 race centers on an open seat in a historically Republican-leaning upstate New York district following Elise Stefanik’s departure. Primaries concluded June 23, 2026, with Anthony Constantino securing the Republican nomination and Blake Gendebien the Democratic nod. The district’s partisan composition, consistent Republican performance in recent cycles, and limited Democratic infrastructure sustain the strong trader preference for the GOP nominee ahead of the November 3 general election. No major late developments have altered the baseline outlook, though turnout patterns and candidate fundraising will be monitored in the coming months.
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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