1988Final results
1988 primary for Missouri House District 9
Missouri House of Representatives · Missouri
Mark Youngdahl (D) won with 50.4% of the vote, defeating Mike Schellhorn (D) by 0.8 points.
Mark YoungdahlDemocrat · winner · incumbent
50.4%2,821
Mike SchellhornDemocrat
49.6%2,778
5,599 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET