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Official portrait of John Thune, U.S. Senator for South Dakota

John Thune

U.S. Senator for South Dakota

Republican · Since 2005 · Next election: 2028 · Age 65 · Senior senator

Last updated · 7 sources

John Thune is the senior U.S. Senator for South Dakota, a Republican serving since 2005.

Thune has served in the Senate longer than 87 of its 99 other members.

Thune is Senate Majority Leader.

Thune sits on 4 committees: Commerce, Science, and Transportation; Agriculture, Nutrition, and Forestry; Finance; and Intelligence.

In the Senate's last 30 days in session (Jun 23 – Oct 2, 2026), Thune voted in 74 of 74 roll calls (100%). In that period, 19 bills Thune sponsored or cosponsored had new actions.

1 bill Thune sponsored has become law in the 119th Congress.

Thune's seat is next on the ballot in 2028.

This week (Sep 28 – Oct 4, 2026)

Full schedule →

Senate: met Mon–Wed (Sep 28–30, 2026); a pro forma session Thu

12 roll-call votes: 6 Nay, 6 Yea

  • · Closed hearing

    To receive a closed briefing on certain intelligence matters.

    Senate Intelligence Committee · 219 Hart Senate Office Building · Notice

  • · Closed hearing

    To receive a closed briefing on certain intelligence matters.

    Senate Intelligence Committee · 219 Hart Senate Office Building · Notice

Votes

All of them →

Voted in 74 of 74 roll calls (100%), Jun 23 – Oct 2, 2026.

Thune voted with the majority of Senate Republicans on 73 roll calls and against it on 1.

Votes against the party majority

John Thune's most recent votes against the party majority and missed votes
DateVoteQuestionResultJohn ThuneNote
Jul 14No. 195On Cloture on the Motion to Proceed S. 4784Motion to Invoke Cloture: Motion to Proceed to S. 4784Cloture on the Motion to Proceed RejectedNayMost Senate Republicans: Yea

Legislation

58 bills sponsored and 69 cosponsored in the 119th Congress · 1 became law

  • S. 5359 Pennington County Land Conveyance Act

    Sponsor · Latest action Sep 30, 2026: Committee on Energy and Natural Resources. Ordered to be reported with an amendment in the nature of a substitute favorably.

  • S.Res. 928 A resolution to authorize testimony, document production, and representation by the Senate Legal Counsel in the case of United States v. Terry.

    Sponsor · Latest action Sep 29, 2026: Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S5186; text: CR S5178)

  • S.Res. 913 A resolution relating to the death of the Honorable Nancy Kassebaum, former United States Senator for the State of Kansas.

    Cosponsor · Latest action Sep 28, 2026: Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S5064-5065; text: CR S5074-5075)

Sponsored bills that became law (1)

  • S. 723 Tribal Trust Land Homeownership Act of 2025

    Latest action May 4, 2026: Became Public Law No: 119-88.

Campaign finance

Raised
$8,305,883
Spent
$7,534,224
Cash on hand
$17,713,892

2028 election cycle, through Jun 30, 2026 · FEC S2SD00068

South Dakota senators

All 3 members of Congress from South Dakota →

Sources