Incumbent Democrat Adam Gray holds a strong position in California's 13th congressional district ahead of the November 3, 2026, general election, where he faces Republican Kevin Lincoln II. Gray flipped the Central Valley seat in 2024 by fewer than 200 votes and advanced comfortably through the June 2026 primary alongside Lincoln. Recent redistricting via Proposition 50 shifted the district's partisan voting index slightly toward Democrats, while forecasters rate the race as Solid or Safe Democratic. These elements underpin trader consensus around an 89.5% probability for the Democratic nominee, with limited recent developments altering the outlook before the fall campaign intensifies.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedCA-13 House Election Winner
Democratic Party
90%
Republican Party
11%
Democratic Party
90%
Republican Party
11%
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: Dec 16, 2025, 11:45 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...Incumbent Democrat Adam Gray holds a strong position in California's 13th congressional district ahead of the November 3, 2026, general election, where he faces Republican Kevin Lincoln II. Gray flipped the Central Valley seat in 2024 by fewer than 200 votes and advanced comfortably through the June 2026 primary alongside Lincoln. Recent redistricting via Proposition 50 shifted the district's partisan voting index slightly toward Democrats, while forecasters rate the race as Solid or Safe Democratic. These elements underpin trader consensus around an 89.5% probability for the Democratic nominee, with limited recent developments altering the outlook before the fall campaign intensifies.
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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