2018Final results
2018 election for Wisconsin's 8th District
U.S. House · Wisconsin
Mike Gallagher (R) won with 63.7% of the vote, defeating Beau Liegeois (D) by 27.4 points.
Mike GallagherRepublican · winner
63.7%209,410
Beau LiegeoisDemocrat
36.3%119,265
328,675 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Beau LiegeoisMike Gallagher
$358K
Raised by the campaign
$2.8M
$343.5K
Spent by the campaign
$2.1M
$14.5K
Cash on hand
$808.3K
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018