Nominee not yet identified
The primary may be unresolved, or the source does not yet list one clear nominee.
Democratic nominee TBD vs. Republican nominee TBD on a newly enacted 2026 district map.
Margin from the district's presidential lean on its 2026 lines, one fitted intercept and the national environment as a uniform swing; the win probability adds a decaying incumbency premium (Republican incumbent running). No district poll is blended in.
The primary may be unresolved, or the source does not yet list one clear nominee.
The primary may be unresolved, or the source does not yet list one clear nominee.
Other listed republican candidates: Ken Calvert, Young Kim.
We have not yet ingested a district rating from these independent forecasters for CA-40; links go to their current national House ratings. Missing is shown as missing—not converted into a probability.
No recent verified candidate stories are available in the site's news feed for this race yet.
Candidate field source: 2026 House election roster ↗