Kentucky's 4th Congressional District, with an R+18 Partisan Voter Index and ratings of Solid Republican from Cook Political Report and Safe Republican from Sabato's Crystal Ball, anchors trader consensus at 90.5% for the Republican Party nominee in the November 3 general election, reflecting incumbent Thomas Massie's history of 65-99% victories and the district's consistent GOP dominance. A heated May 19 closed primary pits Massie against Trump-endorsed challenger Ed Gallrein, backed recently by Sen. Rand Paul amid Trump rally visits last month, but underfunded Democratic primary contenders Jesse Brewer and Melissa Strange pose minimal threat given their scant campaign resources. Scenarios like a post-primary GOP scandal, nominee health issues, or national Democratic midterm surge could narrow odds, though structural advantages and historical base rates make flips rare.
Experimental AI-generated summary referencing Polymarket data · UpdatedKY-04 House Election Winner
KY-04 House Election Winner
Republican Party
91%
Democratic Party
9%
Republican Party
91%
Democratic Party
9%
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...Kentucky's 4th Congressional District, with an R+18 Partisan Voter Index and ratings of Solid Republican from Cook Political Report and Safe Republican from Sabato's Crystal Ball, anchors trader consensus at 90.5% for the Republican Party nominee in the November 3 general election, reflecting incumbent Thomas Massie's history of 65-99% victories and the district's consistent GOP dominance. A heated May 19 closed primary pits Massie against Trump-endorsed challenger Ed Gallrein, backed recently by Sen. Rand Paul amid Trump rally visits last month, but underfunded Democratic primary contenders Jesse Brewer and Melissa Strange pose minimal threat given their scant campaign resources. Scenarios like a post-primary GOP scandal, nominee health issues, or national Democratic midterm surge could narrow odds, though structural advantages and historical base rates make flips rare.
Experimental AI-generated summary referencing Polymarket data · Updated
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