1990Flipped from DemocraticFinal results
1990 election for Missouri House District 155
Missouri House of Representatives · Missouri
Mark L. Richardson (R) won with 52.4% of the vote, defeating Bob Macdonald (D) by 4.8 points, a seat Democrats won last time.
Mark L. RichardsonRepublican · winner
52.4%3,825
Bob MacdonaldDemocrat
47.6%3,477
7,302 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