2006Final results
2006 election for California Senate District 12
California State Senate · California
Jeff Denham (R) won with 58.1% of the vote, defeating Wiley Nickel (D) by 16.2 points.
Jeff DenhamRepublican · winner · incumbent
58.1%90,288
Wiley NickelDemocrat
41.9%65,130
155,418 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 2006
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET