2016Final results
2016 election for Wisconsin Senate District 18
Wisconsin State Senate · Wisconsin
Dan Feyen (R) won with 55.8% of the vote, defeating Mark L. Harris (D) by 11.8 points.
Dan FeyenRepublican · winner
55.8%46,076
Mark L. HarrisDemocrat
44.1%36,366
82,529 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET