2008Final results
2008 election for California Assembly District 8
California State Assembly · California
Mariko Yamada (D) won with 66.0% of the vote, defeating Manuel Cosme (R) by 32.1 points.
Mariko YamadaDemocrat · winner
66.0%112,524
Manuel CosmeRepublican
34.0%57,883
170,407 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 2008
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET