2018Final results
2018 election for Missouri's 3rd District
U.S. House · Missouri
Blaine Luetkemeyer (R) won with 65.1% of the vote, defeating Katy Geppert (D) by 32.2 points.
Blaine LuetkemeyerRepublican · winner
65.1%211,243
Katy GeppertDemocrat
32.8%106,589
Donald V. StolleLibertarian
2.1%6,776
324,608 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.
Katy GeppertBlaine Luetkemeyer
$34.1K
Raised by the campaign
$2.3M
$34.2K
Spent by the campaign
$1.9M
$4
Cash on hand
$2.3M
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018