This is the 1978 race. The latest: 1980 →

1978Final results

1978 election for South Dakota's 2nd District

U.S. House · South Dakota

James Abdnor (R) won with 56.0% of the vote, defeating Robert Samuelson (D) by 12.1 points.

James AbdnorRepublican · winner
56.0%70,780
44.0%55,516
126,296 votes

Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET

The seat over time

D − R margin in this seat's races around 1978

Races before and after

EvenR+39.71976R+12.11978R+16.81980

Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET