2018Final results
2018 election for Missouri's 8th District
U.S. House · Missouri
Jason Smith (R) won with 73.4% of the vote, defeating Kathy Ellis (D) by 48.4 points.
Jason SmithRepublican · winner
73.4%194,059
Kathy EllisDemocrat
25.0%66,159
Jonathan L. ShellLibertarian
1.6%4,206
264,424 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.
Kathy EllisJason Smith
$194.2K
Raised by the campaign
$2M
$191.3K
Spent by the campaign
$1.4M
$3K
Cash on hand
$1.1M
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018