2016Final results
2016 election for U.S. Senate in Wisconsin
U.S. Senate · Wisconsin
Ron Johnson (R) won with 50.2% of the vote, defeating Russell Feingold (D) by 3.4 points.
Ron JohnsonRepublican · winner
50.2%1,479,471
Russell FeingoldDemocrat
46.8%1,380,335
Philip N. AndersonLibertarian
3.0%87,531
2,948,741 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
Money in this race
Each line compares the two campaigns on one scale.
Russell FeingoldRon Johnson
$24.9M
Raised by the campaign
$17.7M
$24.8M
Spent by the campaign
$18.2M
$60.9K
Cash on hand
$44.3K
Other candidates' campaigns: Philip N. Anderson $10.9K.
Campaign money: FEC, through Dec 31, 2016.
Source: FEC campaign filingsUpdated Dec 31, 2016