Incumbent Democrat Josh Riley holds a clear edge in New York’s 19th congressional district, a seat rated Lean Democratic by the Cook Political Report with a D+1 partisan voter index. Riley’s dominant first-quarter 2026 fundraising—nearly $4 million raised and over $2.8 million in cash on hand—has reinforced his position ahead of the November 3 general election. On the Republican side, a contested June 23 primary between state Senator Peter Oberacker and Alexander Portelli risks splitting resources and attention. With no recent public polling available and New York generic ballot trends favoring Democrats, traders assign the Democratic Party a 70.5 percent implied probability while pricing the Republican nominee at 21.5 percent, reflecting Riley’s incumbency and financial advantages in this competitive Hudson Valley and Southern Tier district.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedNY-19 House Election Winner
Republican Party
24%
Democratic Party
56%
Republican Party
24%
Democratic Party
56%
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, 12:48 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 Josh Riley holds a clear edge in New York’s 19th congressional district, a seat rated Lean Democratic by the Cook Political Report with a D+1 partisan voter index. Riley’s dominant first-quarter 2026 fundraising—nearly $4 million raised and over $2.8 million in cash on hand—has reinforced his position ahead of the November 3 general election. On the Republican side, a contested June 23 primary between state Senator Peter Oberacker and Alexander Portelli risks splitting resources and attention. With no recent public polling available and New York generic ballot trends favoring Democrats, traders assign the Democratic Party a 70.5 percent implied probability while pricing the Republican nominee at 21.5 percent, reflecting Riley’s incumbency and financial advantages in this competitive Hudson Valley and Southern Tier district.
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