2020Final results
2020 election for Wisconsin's 8th District
U.S. House · Wisconsin
Mike Gallagher (R) won with 64.2% of the vote, defeating Amanda Stuck (D) by 28.4 points.
Mike GallagherRepublican · winner
64.2%268,173
Amanda StuckDemocrat
35.8%149,558
417,838 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
Money in this race
Each line compares the two campaigns on one scale.
Amanda StuckMike Gallagher
$424.6K
Raised by the campaign
$3.3M
$407.5K
Spent by the campaign
$2.9M
$2.2K
Cash on hand
$1.2M
Campaign money: FEC, through Dec 31, 2020.
Source: FEC campaign filingsUpdated Dec 31, 2020