Incumbent Democrat George Whitesides faces Republican challenger Jason Gibbs in the November 2026 general election for California’s 27th congressional district. The seat’s commanding Democratic advantage stems from post-2025 redistricting under Proposition 50, which produced a strongly Democratic partisan lean reflected in unanimous “Solid D” or “Safe D” ratings from major forecasters. Whitesides advanced comfortably through the June 2026 top-two primary alongside Gibbs, underscoring limited Republican viability in the district. Trader consensus at 91.5% for Democrats tracks these structural factors, including fundraising patterns and historical performance in comparable California seats. A late-breaking scandal, health event affecting the incumbent, or unexpected national political shift could still narrow the gap, though such developments remain low-probability catalysts before Election Day.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedCA-27 House Election Winner
CA-27 House Election Winner
$11,246 Vol.
$11,246 Vol.
Nov 4, 2026
Democratic Party
92%
Republican Party
6%
$11,246 Vol.
$11,246 Vol.
Nov 4, 2026
Democratic Party
$3,685 Vol.
92%
Republican Party
$7,561 Vol.
6%
This market will resolve according to the party of the candidate who wins the CA-27 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 George Whitesides faces Republican challenger Jason Gibbs in the November 2026 general election for California’s 27th congressional district. The seat’s commanding Democratic advantage stems from post-2025 redistricting under Proposition 50, which produced a strongly Democratic partisan lean reflected in unanimous “Solid D” or “Safe D” ratings from major forecasters. Whitesides advanced comfortably through the June 2026 top-two primary alongside Gibbs, underscoring limited Republican viability in the district. Trader consensus at 91.5% for Democrats tracks these structural factors, including fundraising patterns and historical performance in comparable California seats. A late-breaking scandal, health event affecting the incumbent, or unexpected national political shift could still narrow the gap, though such developments remain low-probability catalysts before Election Day.
This market will resolve according to the party of the candidate who wins the CA-27 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: Nov 25, 2025, 2:30 PM ET
Volume
$11,246End Date
Nov 4, 2026Market Opened
Nov 25, 2025, 2:30 PM ETResolver
0x2F5e3684c...This market will resolve according to the party of the candidate who wins the CA-27 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 George Whitesides faces Republican challenger Jason Gibbs in the November 2026 general election for California’s 27th congressional district. The seat’s commanding Democratic advantage stems from post-2025 redistricting under Proposition 50, which produced a strongly Democratic partisan lean reflected in unanimous “Solid D” or “Safe D” ratings from major forecasters. Whitesides advanced comfortably through the June 2026 top-two primary alongside Gibbs, underscoring limited Republican viability in the district. Trader consensus at 91.5% for Democrats tracks these structural factors, including fundraising patterns and historical performance in comparable California seats. A late-breaking scandal, health event affecting the incumbent, or unexpected national political shift could still narrow the gap, though such developments remain low-probability catalysts before Election Day.
This market will resolve according to the party of the candidate who wins the CA-27 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
$11,246End Date
Nov 4, 2026Market Opened
Nov 25, 2025, 2:30 PM ETResolver
0x2F5e3684c...Incumbent Democrat George Whitesides faces Republican challenger Jason Gibbs in the November 2026 general election for California’s 27th congressional district. The seat’s commanding Democratic advantage stems from post-2025 redistricting under Proposition 50, which produced a strongly Democratic partisan lean reflected in unanimous “Solid D” or “Safe D” ratings from major forecasters. Whitesides advanced comfortably through the June 2026 top-two primary alongside Gibbs, underscoring limited Republican viability in the district. Trader consensus at 91.5% for Democrats tracks these structural factors, including fundraising patterns and historical performance in comparable California seats. A late-breaking scandal, health event affecting the incumbent, or unexpected national political shift could still narrow the gap, though such developments remain low-probability catalysts before Election Day.
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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