2004Final results
2004 election for California Senate District 23
California State Senate · California
Sheila James Kuehl (D) won with 65.7% of the vote, defeating Leonard Michael Lanzi (R) by 36.6 points.
Sheila James KuehlDemocrat · winner · incumbent
65.7%229,321
Leonard Michael LanziRepublican
29.1%101,648
Colin GoldmanLibertarian
5.2%18,168
349,137 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 2004
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET