2018Final results
2018 election for California Senate District 20
California State Senate · California
Connie M. Leyva (D) won with 69.5% of the vote, defeating Matthew Munson (R) by 38.9 points.
Connie M. LeyvaDemocrat · winner · incumbent
69.5%137,748
Matthew MunsonRepublican
30.5%60,578
198,326 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
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET