This is the 2018 race. The latest: 2026 →

2018Final results

2018 election for California Assembly District 23

California State Assembly · California

Jim Patterson (R) won with 59.4% of the vote, defeating Aileen Rizo (D) by 18.9 points.

Jim PattersonRepublican · winner · incumbent
59.4%98,789
Aileen RizoDemocrat
40.6%67,443
166,232 votes

Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET

The seat over time

D − R margin in this seat's races around 2018

Races before and after

EvenD+47.82006D+53.22008D+50.12010R+18.92018D+46.82022D+51.72026

Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET