1970Final results
1970 election for Michigan House District 78
Michigan House of Representatives · Michigan
Roy L. Spencer (R) won with 63.5% of the vote, defeating Ronald Thwing (D) by 27.0 points.
Roy L. SpencerRepublican · winner · incumbent
63.5%13,595
Ronald ThwingDemocrat
36.5%7,817
21,412 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 1970
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET