Incumbent Rep. Thomas Massie leads recent polls over Trump-endorsed challenger Ed Gallrein in the closely watched May 19 Republican primary for Kentucky's 4th Congressional District, a solidly conservative seat with a strong history of GOP dominance that underpins trader consensus pricing the Republican Party at 90.5% to win the November general election. Heavy outside spending from groups like AIPAC targeting Massie has intensified the primary but done little to elevate Democratic prospects, where Jesse Russell Brewer faces minimal opposition. This commanding position reflects the district's entrenched Republican voting patterns and weak Democratic field; realistic challenges would require a primary upset yielding a flawed nominee, a major scandal, or unforeseen voter turnout shifts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedKY-04 House Election Winner
KY-04 House Election Winner
$12,206 Vol.
$12,206 Vol.
Nov 3, 2026
Republican Party
91%
Democratic Party
9%
$12,206 Vol.
$12,206 Vol.
Nov 3, 2026
Republican Party
$10,889 Vol.
91%
Democratic Party
$1,316 Vol.
9%
This market will resolve according to the party of the candidate who wins the KY-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 2026.
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/).Incumbent Rep. Thomas Massie leads recent polls over Trump-endorsed challenger Ed Gallrein in the closely watched May 19 Republican primary for Kentucky's 4th Congressional District, a solidly conservative seat with a strong history of GOP dominance that underpins trader consensus pricing the Republican Party at 90.5% to win the November general election. Heavy outside spending from groups like AIPAC targeting Massie has intensified the primary but done little to elevate Democratic prospects, where Jesse Russell Brewer faces minimal opposition. This commanding position reflects the district's entrenched Republican voting patterns and weak Democratic field; realistic challenges would require a primary upset yielding a flawed nominee, a major scandal, or unforeseen voter turnout shifts.
This market will resolve according to the party of the candidate who wins the KY-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 2026.
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/).
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
Volume
$12,206End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 11:09 AM ETResolver
0x2F5e3684c...This market will resolve according to the party of the candidate who wins the KY-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 2026.
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/).Incumbent Rep. Thomas Massie leads recent polls over Trump-endorsed challenger Ed Gallrein in the closely watched May 19 Republican primary for Kentucky's 4th Congressional District, a solidly conservative seat with a strong history of GOP dominance that underpins trader consensus pricing the Republican Party at 90.5% to win the November general election. Heavy outside spending from groups like AIPAC targeting Massie has intensified the primary but done little to elevate Democratic prospects, where Jesse Russell Brewer faces minimal opposition. This commanding position reflects the district's entrenched Republican voting patterns and weak Democratic field; realistic challenges would require a primary upset yielding a flawed nominee, a major scandal, or unforeseen voter turnout shifts.
This market will resolve according to the party of the candidate who wins the KY-04 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 2026.
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/).
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/).
Volume
$12,206End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 11:09 AM ETResolver
0x2F5e3684c...Incumbent Rep. Thomas Massie leads recent polls over Trump-endorsed challenger Ed Gallrein in the closely watched May 19 Republican primary for Kentucky's 4th Congressional District, a solidly conservative seat with a strong history of GOP dominance that underpins trader consensus pricing the Republican Party at 90.5% to win the November general election. Heavy outside spending from groups like AIPAC targeting Massie has intensified the primary but done little to elevate Democratic prospects, where Jesse Russell Brewer faces minimal opposition. This commanding position reflects the district's entrenched Republican voting patterns and weak Democratic field; realistic challenges would require a primary upset yielding a flawed nominee, a major scandal, or unforeseen voter turnout shifts.
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