1980Final resultsIncumbent defeated
1980 election for South Dakota Legislative District 2
South Dakota State Senate · South Dakota
Frances S. Lamont (R) won with 36.3% of the vote, defeating Robert K. Williams (D) by 11.0 points.
Frances S. LamontRepublican · winner · incumbent
36.3%12,593
Robert K. WilliamsDemocrat · incumbent
25.3%8,763
Clark L. SwisherRepublican
24.8%8,612
Sue M. NipeDemocrat
13.5%4,694
34,662 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