2018Final results
2018 election for Kansas's 1st District
U.S. House · Kansas
Roger Marshall (R) won with 68.1% of the vote, defeating Alan Lapolice (D) by 36.3 points.
Roger MarshallRepublican · winner
68.1%153,082
Alan LapoliceDemocrat
31.9%71,558
224,640 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.
Alan LapoliceRoger Marshall
$215.4K
Raised by the campaign
$1.3M
$214.4K
Spent by the campaign
$753.2K
$5
Cash on hand
$608.3K
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018