1998Final results
1998 election for South Dakota Legislative District 20
South Dakota State Senate · South Dakota
Mel Olson (D) won with 65.2% of the vote, defeating Ron Jenkins (R) by 30.5 points.
Mel OlsonDemocrat · winner · incumbent
65.2%5,119
Ron JenkinsRepublican
34.8%2,727
7,846 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 1998
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET