1970Final results
1970 election for Michigan Senate District 23
Michigan State Senate · Michigan
Gary Byker (R) won with 65.0% of the vote, defeating Chester J. Harmsen (D) by 30.0 points.
Gary BykerRepublican · winner · incumbent
65.0%49,410
Chester J. HarmsenDemocrat
35.0%26,609
76,019 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