2018Final results
2018 election for California Assembly District 20
California State Assembly · California
Bill Quirk (D) won with 77.4% of the vote, defeating Joseph Grcar (R) by 54.8 points.
Bill QuirkDemocrat · winner · incumbent
77.4%105,848
Joseph GrcarRepublican
22.6%30,863
136,711 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