Incumbent Democrat Jim Costa dominates trader consensus at 88.5% implied probability to win California's 21st Congressional District House seat, reflecting his fundraising lead with over $687,000 cash on hand as of late 2025, far outpacing Republican challengers Kyle Kirkland and Lorenzo Rios. The Central Valley district's D+5 partisan lean after 2025 redistricting, combined with Costa's consistent victories—including 52.6% against Michael Maher in 2024—bolsters his position ahead of the June 2 top-two primary. Race raters like Cook Political Report label it Likely Democratic, with no polling showing GOP traction and minimal recent developments beyond candidate certifications on March 26. A national Republican wave or Costa primary upset could shift odds, but structural advantages favor Democrats.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoVencedor da eleição para a Casa do CA-21
Vencedor da eleição para a Casa do CA-21
Partido Democrata
89%
Partido Republicano
11%
Partido Democrata
89%
Partido Republicano
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/).
Mercado Aberto: Jan 28, 2026, 12:08 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 Jim Costa dominates trader consensus at 88.5% implied probability to win California's 21st Congressional District House seat, reflecting his fundraising lead with over $687,000 cash on hand as of late 2025, far outpacing Republican challengers Kyle Kirkland and Lorenzo Rios. The Central Valley district's D+5 partisan lean after 2025 redistricting, combined with Costa's consistent victories—including 52.6% against Michael Maher in 2024—bolsters his position ahead of the June 2 top-two primary. Race raters like Cook Political Report label it Likely Democratic, with no polling showing GOP traction and minimal recent developments beyond candidate certifications on March 26. A national Republican wave or Costa primary upset could shift odds, but structural advantages favor Democrats.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado
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