1980Final results
1980 Democratic primary for Missouri House District 9
Missouri House of Representatives · Missouri
Mark Youngdahl (D) won with 47.0% of the vote, defeating Maurice Lawson (D) by 8.5 points.
Mark YoungdahlDemocrat · winner · incumbent
47.0%2,788
Maurice LawsonDemocrat
38.5%2,285
Rocky MaughDemocrat
14.5%859
5,932 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET