2010Final results
2010 election for Wisconsin Senate District 15
Wisconsin State Senate · Wisconsin
Timothy F. Cullen (D) won with 59.0% of the vote, defeating Rick Richard (R) by 18.0 points.
Timothy F. CullenDemocrat · winner
59.0%31,918
Rick RichardRepublican
41.0%22,181
54,117 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