1974Final resultsIncumbent defeated
1974 election for Wisconsin Senate District 15
Wisconsin State Senate · Wisconsin
Timothy F. Cullen (D) won with 55.8% of the vote, defeating James D. Swan (R) by 11.6 points.
Timothy F. CullenDemocrat · winner
55.8%18,931
James D. SwanRepublican · incumbent
44.2%14,982
33,916 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 1974
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET