California's 1st congressional district underwent significant redistricting under Proposition 50, shifting voter registration to approximately 41% Democratic and 31% Republican and producing a partisan lean that favors Democrats in the November 2026 general election. Following the January 2026 death of longtime Republican incumbent Doug LaMalfa, Republican James Gallagher won a special election under the prior boundaries but advanced from the June 2026 top-two primary alongside Democrat Mike McGuire under the new lines. Nonpartisan ratings classify the seat as solid or safe Democratic, reflecting the map's structural advantage and McGuire's established profile as a former state Senate leader. Trader consensus assigns the Democratic nominee a commanding implied probability, though a late campaign event, turnout surge among rural voters, or broader national Republican wave could still narrow the gap 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-01 House Election Winner
CA-01 House Election Winner
$35,032 Vol.
$35,032 Vol.
Nov 2, 2026
Democratic Party
97%
Republican Party
2%
$35,032 Vol.
$35,032 Vol.
Nov 2, 2026
Democratic Party
$26,310 Vol.
97%
Republican Party
$8,722 Vol.
2%
This market will resolve according to the party of the candidate who wins the CA-01 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/).California's 1st congressional district underwent significant redistricting under Proposition 50, shifting voter registration to approximately 41% Democratic and 31% Republican and producing a partisan lean that favors Democrats in the November 2026 general election. Following the January 2026 death of longtime Republican incumbent Doug LaMalfa, Republican James Gallagher won a special election under the prior boundaries but advanced from the June 2026 top-two primary alongside Democrat Mike McGuire under the new lines. Nonpartisan ratings classify the seat as solid or safe Democratic, reflecting the map's structural advantage and McGuire's established profile as a former state Senate leader. Trader consensus assigns the Democratic nominee a commanding implied probability, though a late campaign event, turnout surge among rural voters, or broader national Republican wave could still narrow the gap before Election Day.
This market will resolve according to the party of the candidate who wins the CA-01 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 27, 2026, 11:54 PM ET
Volume
$35,032End Date
Nov 3, 2026Market Opened
Jan 27, 2026, 11:54 PM ETResolver
0x2F5e3684c...This market will resolve according to the party of the candidate who wins the CA-01 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/).California's 1st congressional district underwent significant redistricting under Proposition 50, shifting voter registration to approximately 41% Democratic and 31% Republican and producing a partisan lean that favors Democrats in the November 2026 general election. Following the January 2026 death of longtime Republican incumbent Doug LaMalfa, Republican James Gallagher won a special election under the prior boundaries but advanced from the June 2026 top-two primary alongside Democrat Mike McGuire under the new lines. Nonpartisan ratings classify the seat as solid or safe Democratic, reflecting the map's structural advantage and McGuire's established profile as a former state Senate leader. Trader consensus assigns the Democratic nominee a commanding implied probability, though a late campaign event, turnout surge among rural voters, or broader national Republican wave could still narrow the gap before Election Day.
This market will resolve according to the party of the candidate who wins the CA-01 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
$35,032End Date
Nov 3, 2026Market Opened
Jan 27, 2026, 11:54 PM ETResolver
0x2F5e3684c...California's 1st congressional district underwent significant redistricting under Proposition 50, shifting voter registration to approximately 41% Democratic and 31% Republican and producing a partisan lean that favors Democrats in the November 2026 general election. Following the January 2026 death of longtime Republican incumbent Doug LaMalfa, Republican James Gallagher won a special election under the prior boundaries but advanced from the June 2026 top-two primary alongside Democrat Mike McGuire under the new lines. Nonpartisan ratings classify the seat as solid or safe Democratic, reflecting the map's structural advantage and McGuire's established profile as a former state Senate leader. Trader consensus assigns the Democratic nominee a commanding implied probability, though a late campaign event, turnout surge among rural voters, or broader national Republican wave could still narrow the gap 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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