1998Final results
1998 election for South Dakota's at-large District
U.S. House · South Dakota
John Thune (R) won with 75.1% of the vote, defeating Jeff Moser (D) by 50.2 points.
John ThuneRepublican · winner
75.1%194,157
Jeff MoserDemocrat
24.9%64,433
258,590 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 1998
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Jeff MoserJohn Thune
$56.6K
Raised by the campaign
$822.1K
$56.3K
Spent by the campaign
$621K
$321
Cash on hand
$214.8K
Campaign money: FEC, through Dec 31, 1998.
Source: FEC campaign filingsUpdated Dec 31, 1998