1978Final results
1978 election for Missouri Senate District 20
Missouri State Senate · Missouri
Marvin L. Dinger (D) won with 51.9% of the vote, defeating A. G. Tindall (R) by 3.8 points.
Marvin L. DingerDemocrat · winner · incumbent
51.9%27,844
A. G. TindallRepublican
48.1%25,786
53,630 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET