2020Final results
2020 election for Wisconsin Assembly District 45
Wisconsin State Assembly · Wisconsin
Mark Spreitzer (D) won with 54.8% of the vote, defeating Tawny Gustina (R) by 9.7 points.
Mark SpreitzerDemocrat · winner · incumbent
54.8%14,451
Tawny GustinaRepublican
45.1%11,895
26,370 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET