1972Final results
1972 election for South Dakota Legislative District 20
South Dakota House of Representatives · South Dakota
2 seats: Dean O. Mehlhaff (R), James L. Rothstein (R) won.
2 seatsDean O. MehlhaffRepublican · winner · incumbent
34.7%6,217
James L. RothsteinRepublican · winner · incumbent
34.0%6,092
Otto MayerDemocrat
16.4%2,939
Harold FetherhuffDemocrat
14.9%2,676
17,924 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 1972
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET