1982Final results
1982 election for South Dakota Legislative District 25
South Dakota State Senate · South Dakota
John D. Manke (R) won with 64.4% of the vote, defeating Marshall J. Truax (D) by 28.7 points.
John D. MankeRepublican · winner · incumbent
64.4%5,198
Marshall J. TruaxDemocrat
35.6%2,877
8,075 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 1982
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET