1990Final results
1990 election for Missouri House District 140
Missouri House of Representatives · Missouri
Thomas M. Macdonnell (D) won with 57.3% of the vote, defeating Clark T. Lawson (R) by 14.6 points.
Thomas M. MacdonnellDemocrat · winner · incumbent
57.3%5,888
Clark T. LawsonRepublican
42.7%4,385
10,273 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET