Katherine Clark secured the Democratic nomination in the September 1 primary with roughly 74 percent of the vote against two progressive challengers, underscoring her strong position as House minority whip and incumbent in a district rated Solid Democratic by multiple forecasters. The Massachusetts 5th lacks a Republican nominee on the general election ballot for November 3, leaving only an independent candidate as nominal opposition in a constituency with a Cook Partisan Voting Index exceeding D+20. Clark’s substantial fundraising advantage and consistent reelection margins above 70 percent in prior cycles reinforce trader expectations of a decisive victory, though late developments such as a significant scandal or health event could still alter the trajectory before certification.
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
$37,301 Vol.
$37,301 Vol.
Nov 3, 2026
Katherine Clark (D)
97%
Republican Party
2%
$37,301 Vol.
$37,301 Vol.
Nov 3, 2026
Katherine Clark (D)
$26,790 Vol.
97%
Republican Party
$10,511 Vol.
2%
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/).Katherine Clark secured the Democratic nomination in the September 1 primary with roughly 74 percent of the vote against two progressive challengers, underscoring her strong position as House minority whip and incumbent in a district rated Solid Democratic by multiple forecasters. The Massachusetts 5th lacks a Republican nominee on the general election ballot for November 3, leaving only an independent candidate as nominal opposition in a constituency with a Cook Partisan Voting Index exceeding D+20. Clark’s substantial fundraising advantage and consistent reelection margins above 70 percent in prior cycles reinforce trader expectations of a decisive victory, though late developments such as a significant scandal or health event could still alter the trajectory before certification.
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
$37,301End Date
Nov 4, 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/).Katherine Clark secured the Democratic nomination in the September 1 primary with roughly 74 percent of the vote against two progressive challengers, underscoring her strong position as House minority whip and incumbent in a district rated Solid Democratic by multiple forecasters. The Massachusetts 5th lacks a Republican nominee on the general election ballot for November 3, leaving only an independent candidate as nominal opposition in a constituency with a Cook Partisan Voting Index exceeding D+20. Clark’s substantial fundraising advantage and consistent reelection margins above 70 percent in prior cycles reinforce trader expectations of a decisive victory, though late developments such as a significant scandal or health event could still alter the trajectory before certification.
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
$37,301End Date
Nov 4, 2026Market Opened
Jan 28, 2026, 11:09 AM ETResolver
0x2F5e3684c...Katherine Clark secured the Democratic nomination in the September 1 primary with roughly 74 percent of the vote against two progressive challengers, underscoring her strong position as House minority whip and incumbent in a district rated Solid Democratic by multiple forecasters. The Massachusetts 5th lacks a Republican nominee on the general election ballot for November 3, leaving only an independent candidate as nominal opposition in a constituency with a Cook Partisan Voting Index exceeding D+20. Clark’s substantial fundraising advantage and consistent reelection margins above 70 percent in prior cycles reinforce trader expectations of a decisive victory, though late developments such as a significant scandal or health event could still alter the trajectory before certification.
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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