2018Final results
2018 election for Arizona's 4th District
U.S. House · Arizona
Paul Gosar (R) won with 68.1% of the vote, defeating David Brill (D) by 37.6 points.
Paul GosarRepublican · winner
68.1%188,842
David BrillDemocrat
30.5%84,521
1.3%3,672
277,230 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.
David BrillPaul Gosar
$598.5K
Raised by the campaign
$588.8K
$598.5K
Spent by the campaign
$575.2K
$0
Cash on hand
$121.2K
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018