2010Final results
2010 election for California Assembly District 18
California State Assembly · California
Mary Hayashi (D) won with 75.2% of the vote, defeating Michael Havig (R) by 50.4 points.
Mary HayashiDemocrat · winner · incumbent
75.2%85,237
Michael HavigRepublican
24.8%28,124
113,361 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET