1974Final resultsIncumbent defeated
1974 election for Michigan Senate District 33
Michigan State Senate · Michigan
Tony A. Derezinski (D) won with 63.8% of the vote, defeating Oscar E. Bouwsma (R) by 28.8 points.
Tony A. DerezinskiDemocrat · winner
63.8%48,033
Oscar E. BouwsmaRepublican · incumbent
35.0%26,357
Ronald E. PeschIndependent
1.2%915
75,313 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 1974
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET