1980Final results
1980 election for South Dakota Legislative District 15
South Dakota House of Representatives · South Dakota
2 seats: Francis R. Thieman (R), Frank J. Brady (D) won.
2 seatsFrancis R. ThiemanRepublican · winner · incumbent
40.7%5,701
Frank J. BradyDemocrat · winner · incumbent
33.9%4,752
Michael A. RossiterDemocrat
25.4%3,554
14,007 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 1980
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET