John Thune
John Randolph Thune is an American politician serving as the senior United States senator from South Dakota, a seat he has held since 2005. A member of the Republican Party, Thune has served since 2025 as Senate majority leader and Senate Republican leader. From 1997 to 2003, Thune served as the U.S. representative for South Dakota's at-large congressional district.
100 votes
13 days until Election Day
Tuesday, November 3, 2026 — every House seat and about a third of the Senate are on the ballot.
Background
Born
1961-01-07, Pierre
Education
Jones County High School, Biola University, University of South Dakota
Prior Occupations
politician, businessperson, railway executive
Positions Held
United States representative, United States senator, Majority Leader of the United States Senate
News mentioning John Thune
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Country
United States
Chamber
Senate
Party
Republican
State
South Dakota
Status
Current member
In office since
1997
Competency Scorecard
What this person's job actually involves