2018Final results
2018 election for South Dakota Legislative District 2
South Dakota State Senate · South Dakota
Brock L. Greenfield (R) won with 67.2% of the vote, defeating Paul Register (D) by 34.4 points.
Brock L. GreenfieldRepublican · winner · incumbent
67.2%6,574
Paul RegisterDemocrat
32.8%3,207
9,781 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