Mark DeSaulnier’s commanding position in the California 10th congressional district reflects the incumbent Democrat’s established record, the district’s consistent Democratic registration edge and voting patterns in Contra Costa and Alameda counties, and forecaster ratings classifying the race as Solid or Safe Democratic. The June 2026 top-two primary reinforced this outlook, with DeSaulnier securing nearly 60 percent of the vote while Republican Jeff Frese advanced as the leading challenger. Limited campaign fundraising and visibility for the Republican nominee have further shaped trader consensus around the low probability of an upset. The November 3 general election outcome could shift only in the event of major late developments such as health issues, significant scandals, or abrupt national political realignments that alter turnout dynamics in this low-competition seat.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedCA-10 House Election Winner
CA-10 House Election Winner
$26,646 Vol.
$26,646 Vol.
Nov 3, 2026
Mark DeSaulnier (D)
96%
Jeff Frese (R)
4%
$26,646 Vol.
$26,646 Vol.
Nov 3, 2026
Mark DeSaulnier (D)
$13,695 Vol.
96%
Jeff Frese (R)
$12,951 Vol.
4%
This market will resolve according to the party of the candidate who wins the CA-10 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/).Mark DeSaulnier’s commanding position in the California 10th congressional district reflects the incumbent Democrat’s established record, the district’s consistent Democratic registration edge and voting patterns in Contra Costa and Alameda counties, and forecaster ratings classifying the race as Solid or Safe Democratic. The June 2026 top-two primary reinforced this outlook, with DeSaulnier securing nearly 60 percent of the vote while Republican Jeff Frese advanced as the leading challenger. Limited campaign fundraising and visibility for the Republican nominee have further shaped trader consensus around the low probability of an upset. The November 3 general election outcome could shift only in the event of major late developments such as health issues, significant scandals, or abrupt national political realignments that alter turnout dynamics in this low-competition seat.
This market will resolve according to the party of the candidate who wins the CA-10 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, 11:56 PM ET
Volume
$26,646End Date
Nov 4, 2026Market Opened
Jan 27, 2026, 11:56 PM ETResolver
0x2f5e3684c...This market will resolve according to the party of the candidate who wins the CA-10 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/).Mark DeSaulnier’s commanding position in the California 10th congressional district reflects the incumbent Democrat’s established record, the district’s consistent Democratic registration edge and voting patterns in Contra Costa and Alameda counties, and forecaster ratings classifying the race as Solid or Safe Democratic. The June 2026 top-two primary reinforced this outlook, with DeSaulnier securing nearly 60 percent of the vote while Republican Jeff Frese advanced as the leading challenger. Limited campaign fundraising and visibility for the Republican nominee have further shaped trader consensus around the low probability of an upset. The November 3 general election outcome could shift only in the event of major late developments such as health issues, significant scandals, or abrupt national political realignments that alter turnout dynamics in this low-competition seat.
This market will resolve according to the party of the candidate who wins the CA-10 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
$26,646End Date
Nov 4, 2026Market Opened
Jan 27, 2026, 11:56 PM ETResolver
0x2f5e3684c...Mark DeSaulnier’s commanding position in the California 10th congressional district reflects the incumbent Democrat’s established record, the district’s consistent Democratic registration edge and voting patterns in Contra Costa and Alameda counties, and forecaster ratings classifying the race as Solid or Safe Democratic. The June 2026 top-two primary reinforced this outlook, with DeSaulnier securing nearly 60 percent of the vote while Republican Jeff Frese advanced as the leading challenger. Limited campaign fundraising and visibility for the Republican nominee have further shaped trader consensus around the low probability of an upset. The November 3 general election outcome could shift only in the event of major late developments such as health issues, significant scandals, or abrupt national political realignments that alter turnout dynamics in this low-competition seat.
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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