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  1. House

CA-21 House winner?

Resolves by winning party
Chance
Jim Costa
Democratic party
95%

Jim Costa

Democratic party
95%
Kyle Kirkland
Republican party
5%

Kyle Kirkland

Republican party
5%
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CA-21 House winner?

Jim Costa

Odds
95% chance
Max payout
Nov 3, 2027
$0
Costa
Nov 3 ·D +14.8margin forecast
Kirkland
$32,581 vol
Race Intel

CA-21 House Race 2026

ElectionNov 3, 2026General election
IncumbentJim Costa (D)Running for re-election

CA-21 House Candidates and Fundraising

CandidateRaisedSmall Donors
  • Jim CostaD
    $1.3M
    0.8%
    $1.3M raised·0.8% small donors
  • Kyle KirklandR
    $339K
    11%
    $339K raised·11% small donors

Costa vs. Kirkland Polls vs. Kalshi Odds

Polling averageNo public polling average for this race yet
Kalshi oddsCosta 95%Kirkland 5% · $28.3K traded
Fundraising: FEC filings · Small-donor ≤ $200. This does not include third party expenditures.

Past CA-21 Election Results

Past presidential elections

2024D +6.0%2020D +21.1%