1970Final results
1970 election for South Dakota Legislative District 28
South Dakota House of Representatives · South Dakota
Eugene R. Mahan (D) won with 54.1% of the vote, defeating Arnold Klemme (R) by 8.2 points.
Eugene R. MahanDemocrat · winner
54.1%1,837
Arnold KlemmeRepublican
45.9%1,557
3,394 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