1986Final results
1986 election for South Dakota Legislative District 27
South Dakota State Senate · South Dakota
Dick Waddell (D) won with 54.0% of the vote, defeating Helen Tidball (R) by 8.1 points.
Dick WaddellDemocrat · winner · incumbent
54.0%4,472
Helen TidballRepublican
46.0%3,803
8,275 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 1986
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET