Katherine Clark's commanding position in the MA-05 race stems from the district's deep Democratic tilt, reflected in its Cook Partisan Voting Index of D+24 and consistent double-digit margins in prior cycles. As House Minority Whip and the incumbent since 2013, Clark secured the Democratic nomination on September 1 with roughly 74 percent of the primary vote against two challengers focused on progressive priorities. No Republican advanced from the primary, leaving only an independent opponent on the November 3 general-election ballot. Trader consensus assigns overwhelming probability to Clark because historical turnout patterns, fundraising dominance, and structural barriers make an upset highly improbable absent an unforeseen late development such as a major scandal or health event affecting the frontrunner.
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
$37,301 Vol.
$37,301 Vol.
Katherine Clark (D)
97%
Republican Party
2%
$37,301 Vol.
$37,301 Vol.
Katherine Clark (D)
97%
Republican Party
2%
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...Katherine Clark's commanding position in the MA-05 race stems from the district's deep Democratic tilt, reflected in its Cook Partisan Voting Index of D+24 and consistent double-digit margins in prior cycles. As House Minority Whip and the incumbent since 2013, Clark secured the Democratic nomination on September 1 with roughly 74 percent of the primary vote against two challengers focused on progressive priorities. No Republican advanced from the primary, leaving only an independent opponent on the November 3 general-election ballot. Trader consensus assigns overwhelming probability to Clark because historical turnout patterns, fundraising dominance, and structural barriers make an upset highly improbable absent an unforeseen late development such as a major scandal or health event affecting the frontrunner.
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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