1996Flipped from DemocraticFinal resultsIncumbent defeated
1996 election for South Dakota Legislative District 9
South Dakota State Senate · South Dakota
Dennis Daugaard (R) won with 59.1% of the vote, defeating Mark E. Rogen (D) by 18.3 points, a seat Democrats won last time.
Dennis DaugaardRepublican · winner
59.1%5,419
Mark E. RogenDemocrat · incumbent
40.9%3,746
9,165 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 1996
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET