1988Final results
1988 election for Missouri House District 78
Missouri House of Representatives · Missouri
Mary M. Haganharrell (D) won with 71.8% of the vote, defeating Grant Keys (R) by 43.6 points.
Mary M. HaganharrellDemocrat · winner · incumbent
71.8%7,630
Grant KeysRepublican
28.2%3,000
10,630 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 1988
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET