1990Flipped from RepublicanFinal resultsIncumbent defeated
1990 election for Wisconsin Senate District 29
Wisconsin State Senate · Wisconsin
Russell S. Decker (D) won with 50.7% of the vote, defeating Walter J. Chilsen (R) by 1.3 points, a seat Republicans won last time.
Russell S. DeckerDemocrat · winner
50.7%24,587
Walter J. ChilsenRepublican · incumbent
49.3%23,947
48,534 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 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET