2018Final results
2018 election for South Dakota Legislative District 17
South Dakota State Senate · South Dakota
Arthur Rusch (R) won with 61.2% of the vote, defeating Howard Grinager (D) by 22.3 points.
Arthur RuschRepublican · winner · incumbent
61.2%4,953
Howard GrinagerDemocrat
38.8%3,145
8,098 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET