Incumbent Democrat Katherine Clark seeks re-election in Massachusetts’ 5th congressional district, which carries a Cook Partisan Voter Index of D+24 and has not elected a Republican since 1994. Multiple nonpartisan forecasters rate the seat Solid or Safe Democratic, reflecting consistent voter registration advantages and voting patterns in its eastern Massachusetts suburban and urban communities. Clark’s long tenure and leadership position further anchor trader consensus on a Democratic general-election outcome. A Republican primary is scheduled for September 1, 2026, alongside the Democratic contest featuring Clark and two challengers, yet no competitive GOP candidate has emerged to alter the district’s structural profile. Late developments such as an incumbent withdrawal, major scandal, or an unprecedented national partisan shift would be required to meaningfully narrow the gap.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMA-05 House Election Winner
MA-05 House Election Winner
$37,214 Vol.
$37,214 Vol.
Nov 2, 2026
Democratic Party
97%
Republican Party
3%
$37,214 Vol.
$37,214 Vol.
Nov 2, 2026
Democratic Party
$26,705 Vol.
97%
Republican Party
$10,509 Vol.
3%
This market will resolve according to the party of the candidate who wins the MA-05 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 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 Democrat Katherine Clark seeks re-election in Massachusetts’ 5th congressional district, which carries a Cook Partisan Voter Index of D+24 and has not elected a Republican since 1994. Multiple nonpartisan forecasters rate the seat Solid or Safe Democratic, reflecting consistent voter registration advantages and voting patterns in its eastern Massachusetts suburban and urban communities. Clark’s long tenure and leadership position further anchor trader consensus on a Democratic general-election outcome. A Republican primary is scheduled for September 1, 2026, alongside the Democratic contest featuring Clark and two challengers, yet no competitive GOP candidate has emerged to alter the district’s structural profile. Late developments such as an incumbent withdrawal, major scandal, or an unprecedented national partisan shift would be required to meaningfully narrow the gap.
This market will resolve according to the party of the candidate who wins the MA-05 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 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
$37,214End 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 MA-05 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 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 Democrat Katherine Clark seeks re-election in Massachusetts’ 5th congressional district, which carries a Cook Partisan Voter Index of D+24 and has not elected a Republican since 1994. Multiple nonpartisan forecasters rate the seat Solid or Safe Democratic, reflecting consistent voter registration advantages and voting patterns in its eastern Massachusetts suburban and urban communities. Clark’s long tenure and leadership position further anchor trader consensus on a Democratic general-election outcome. A Republican primary is scheduled for September 1, 2026, alongside the Democratic contest featuring Clark and two challengers, yet no competitive GOP candidate has emerged to alter the district’s structural profile. Late developments such as an incumbent withdrawal, major scandal, or an unprecedented national partisan shift would be required to meaningfully narrow the gap.
This market will resolve according to the party of the candidate who wins the MA-05 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 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
$37,214End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 11:09 AM ETResolver
0x2F5e3684c...Incumbent Democrat Katherine Clark seeks re-election in Massachusetts’ 5th congressional district, which carries a Cook Partisan Voter Index of D+24 and has not elected a Republican since 1994. Multiple nonpartisan forecasters rate the seat Solid or Safe Democratic, reflecting consistent voter registration advantages and voting patterns in its eastern Massachusetts suburban and urban communities. Clark’s long tenure and leadership position further anchor trader consensus on a Democratic general-election outcome. A Republican primary is scheduled for September 1, 2026, alongside the Democratic contest featuring Clark and two challengers, yet no competitive GOP candidate has emerged to alter the district’s structural profile. Late developments such as an incumbent withdrawal, major scandal, or an unprecedented national partisan shift would be required to meaningfully narrow the gap.
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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