2022Final results
2022 election for U.S. Senate in South Dakota
U.S. Senate · South Dakota
John Thune (R) won with 69.6% of the vote, defeating Brian Bengs (D) by 43.5 points.
John ThuneRepublican · winner
69.6%242,316
Brian BengsDemocrat
26.1%91,007
Tamara J. LesnarLibertarian
4.2%14,697
348,020 votes
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
The seat over time
D − R margin in this seat's races around 2022
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Brian BengsJohn Thune
$498K
Raised by the campaign
$7.5M
$492.3K
Spent by the campaign
$4M
$5.7K
Cash on hand
$16.9M
Campaign money: FEC, through Dec 31, 2022.
Source: FEC campaign filingsUpdated Dec 31, 2022