1990Final results
1990 election for Missouri's 1st District
U.S. House · Missouri
Wm. Lacy Clay (D) won with 60.9% of the vote, defeating Wayne G. Piotrowski (R) by 21.8 points.
Wm. Lacy ClayDemocrat · winner
60.9%62,550
Wayne G. PiotrowskiRepublican
39.1%40,160
102,710 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 1990
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Wm. Lacy ClayWayne G. Piotrowski
$215.5K
Raised by the campaign
$12.8K
$198.4K
Spent by the campaign
$12.7K
$119.7K
Cash on hand
$100
Campaign money: FEC, through Dec 31, 1990.
Source: FEC campaign filingsUpdated Dec 31, 1990