Following Rep. Darrell Issa's March retirement from the open CA-48 seat, trader consensus prices Democrats at 84.5% to win the general election, driven by the district's post-redistricting shift to a slight Democratic lean per Cook Political Report's recent Toss Up/Lean D rating. A fragmented Democratic primary field—including Ammar Campa-Najjar, Marni von Wilpert, and Brandon Riker—has sparked infighting and split support, allowing GOP frontrunner San Diego County Supervisor Jim Desmond to lead April polls (25% in SurveyUSA, April 14-19) ahead of the June 2 top-two primary. Traders anticipate Democratic consolidation or turnout edges to secure advancement and victory in this competitive swing district spanning San Diego and Riverside counties.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedCA-48 House Election Winner
CA-48 House Election Winner
Democratic Party
85%
Republican Party
17%
Democratic Party
85%
Republican Party
17%
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, 10:30 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...Following Rep. Darrell Issa's March retirement from the open CA-48 seat, trader consensus prices Democrats at 84.5% to win the general election, driven by the district's post-redistricting shift to a slight Democratic lean per Cook Political Report's recent Toss Up/Lean D rating. A fragmented Democratic primary field—including Ammar Campa-Najjar, Marni von Wilpert, and Brandon Riker—has sparked infighting and split support, allowing GOP frontrunner San Diego County Supervisor Jim Desmond to lead April polls (25% in SurveyUSA, April 14-19) ahead of the June 2 top-two primary. Traders anticipate Democratic consolidation or turnout edges to secure advancement and victory in this competitive swing district spanning San Diego and Riverside counties.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions