This is the 2018 race. The latest: 2026 →

2018Final results

2018 election for Missouri's 1st District

U.S. House · Missouri

Wm. Lacy Clay (D) won with 80.1% of the vote, defeating Robert Vroman (R) by 63.4 points.

Wm. Lacy ClayDemocrat · winner
80.1%219,781
Robert VromanRepublican
16.7%45,867
3.2%8,727
274,375 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

EvenD+60.82012D+51.42014D+55.52016D+63.42018D+59.82020D+48.52022

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.

Wm. Lacy ClayRobert Vroman
$663.7K
Raised by the campaign
$100
$709.1K
Spent by the campaign
$0
$194.4K
Cash on hand
$100

Campaign money: FEC, through Dec 31, 2018; FEC, through Dec 9, 2018.

Source: FEC campaign filingsUpdated Dec 31, 2018

The candidates

Wm. Lacy Clay (D)Robert Vroman (R)

Also on the ballot: Robb E. Cunningham (Libertarian), 3.2%