2018Final results
2018 election for Missouri's 6th District
U.S. House · Missouri
Sam Graves (R) won with 65.4% of the vote, defeating Henry Martin (D) by 33.4 points.
Sam GravesRepublican · winner
65.4%199,796
Henry MartinDemocrat
32.0%97,660
Dan HoganLibertarian
2.6%7,953
305,409 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.
Henry MartinSam Graves
$34.4K
Raised by the campaign
$1.7M
$42.9K
Spent by the campaign
$1.6M
$18.3K
Cash on hand
$552.2K
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018