1986Flipped from RepublicanFinal resultsIncumbent defeated
1986 election for Wisconsin Assembly District 86
Wisconsin State Assembly · Wisconsin
Brad Zweck (D) won with 51.1% of the vote, defeating William A. Kasten (R) by 2.3 points, a seat Republicans won last time.
Brad ZweckDemocrat · winner
51.1%7,815
William A. KastenRepublican · incumbent
48.9%7,469
15,285 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 1986
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET