Democratic
Zoe Lofgren
Incumbent representative for CA-18. Voting record, ideology and biography →
← all House races
California District 18 election, 2026
Zoe Lofgren vs. Shane Lewis on a newly enacted 2026 district map.
VotePredictor forecast
Zoe Lofgren favored
Safe D · predicted margin D+35.2
100%
chance to win
2024 presidential lean
D+29.42026 national environment
D+6.3Model uncertainty
±6.9 pointsFundamentals model using district presidential lean, incumbency and the national environment. It is not a poll average.
Republican
Shane Lewis
Major-party general-election nominee.
Polls
No district-level 2026 general-election poll is currently in VotePredictor's verified polling feed for CA-18. The forecast above uses fundamentals only.
Other forecasts
We have not yet ingested a district rating from these independent forecasters for CA-18; links go to their current national House ratings. Missing is shown as missing—not converted into a probability.
Past results
Every election in California's 18th district we hold a result for. District numbers are reused across redistricting, so older rows may cover different ground than the seat does today.
YearWinnerMargin
Candidate news
This Could Be the Biggest Issue of 2027. Dems Are Split on It.
You’re reading The TNR Blue Book. Get daily scoops, strategy, and developments inside the liberal ideas factory delivered right to your inbox. Sign up for free.Inside WashingtonThis could be the biggest issue of 2027. Dems are split on it.Representative Lori …
The New Republic · September 9, 2026
'Sadistic and Cruel': Democratic Lawmakers Rail Against $20 Million for ICE's Electric Shock Gloves
Democrats in both chambers of Congress this week have joined rights advocates in forcefully denouncing plans for US Immigration and Customs Enforcement to spend up to $20 million on "gloves that can deliver painful electric shocks."The Department of Homeland …
Common Dreams · August 13, 2026
Democrats Investigate Howard Lutnick Over $1.6 Billion Deal
Commerce Secretary Howard Lutnick’s old firm recently cut a $1.6 billion rare earth metals deal, and Democrats in Congress are investigating his role in the apparent conflict of interest. Bloomberg reports that the deal, finalized last month, likely paid off …
The New Republic · July 7, 2026
Candidate field source: 2026 House election roster ↗