InsideGov

Senator

John Thune

South Dakota · Republican

In the Senate since 2005 · 11 Congresses served

About

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 Wikipedia (text may be abridged), licensed under CC BY-SA 4.0.

In the 119th Congress

John Thune sits 52nd from the left of 102 scored senators (2 of them since left office, marked "former" below). Ringed below; the rest of the chamber is faded.

ProEstablishmentAnti
Thune
Economic left–right
More liberalMore conservative

A–Z by last name · 101 members

Sen. Angela AlsobrooksD-MDSen. Alan ArmstrongR-OKSen. Tammy BaldwinD-WISen. Jim BanksR-INSen. John BarrassoR-WYSen. Michael BennetD-COSen. Marsha BlackburnR-TNSen. Richard BlumenthalD-CTSen. Lisa Blunt RochesterD-DESen. Cory BookerD-NJSen. John BoozmanR-ARSen. Katie BrittR-ALSen. Ted BuddR-NCSen. Maria CantwellD-WASen. Shelley CapitoR-WVSen. Bill CassidyR-LASen. Susan CollinsR-MESen. Christopher CoonsD-DESen. John CornynR-TXSen. Catherine Cortez MastoD-NVSen. Tom CottonR-ARSen. Kevin CramerR-NDSen. Mike CrapoR-IDSen. Ted CruzR-TXSen. John CurtisR-UTSen. Steve DainesR-MTSen. Tammy DuckworthD-ILSen. Richard DurbinD-ILSen. Joni ErnstR-IASen. John FettermanD-PASen. Deb FischerR-NESen. Ruben GallegoD-AZSen. Kirsten GillibrandD-NYSen. Darline GrahamR-SCSen. Lindsey GrahamR-SC (fmr)Sen. Chuck GrassleyR-IASen. Bill HagertyR-TNSen. Maggie HassanD-NHSen. Josh HawleyR-MOSen. Martin HeinrichD-NMSen. John HickenlooperD-COSen. Mazie HironoD-HISen. John HoevenR-NDSen. Jon HustedR-OHSen. Cindy Hyde-SmithR-MSSen. Ron JohnsonR-WISen. Jim JusticeR-WVSen. Tim KaineD-VASen. Mark KellyD-AZSen. John KennedyR-LASen. Andy KimD-NJSen. Angus KingI-MESen. Amy KlobucharD-MNSen. James LankfordR-OKSen. Mike LeeR-UTSen. Ben LujánD-NMSen. Cynthia LummisR-WYSen. Ed MarkeyD-MASen. Roger MarshallR-KSSen. Mitch McConnellR-KYSen. Dave McCormickR-PASen. Jeff MerkleyD-ORSen. Ashley MoodyR-FLSen. Jerry MoranR-KSSen. Bernie MorenoR-OHSen. Markwayne MullinR-OK (fmr)Sen. Lisa MurkowskiR-AKSen. Christopher MurphyD-CTSen. Patty MurrayD-WASen. Jon OssoffD-GASen. Alex PadillaD-CASen. Rand PaulR-KYSen. Gary PetersD-MISen. Jack ReedD-RISen. Pete RickettsR-NESen. James RischR-IDSen. Jacky RosenD-NVSen. Mike RoundsR-SDSen. Bernie SandersI-VTSen. Brian SchatzD-HISen. Adam SchiffD-CASen. Eric SchmittR-MOSen. Chuck SchumerD-NYSen. Rick ScottR-FLSen. Tim ScottR-SCSen. Jeanne ShaheenD-NHSen. Tim SheehyR-MTSen. Elissa SlotkinD-MISen. Tina SmithD-MNSen. Dan SullivanR-AKSen. Thom TillisR-NCSen. Tommy TubervilleR-ALSen. Chris Van HollenD-MDSen. Mark WarnerD-VASen. Raphael WarnockD-GASen. Elizabeth WarrenD-MASen. Peter WelchD-VTSen. Sheldon WhitehouseD-RISen. Roger WickerR-MSSen. Ron WydenD-ORSen. Todd YoungR-IN

Ideological trajectory · dimension 1 by Congress

John Thune's per-Congress position (nokken–poole), against the party mean.

0.250.500.752005200920132017202120252021: 0.472021: 0.53

South Dakota delegation · both senators on dimension 1

John Thune and their seatmate, gap 0.05. All 50 delegations →

-1.0-0.50.00.51.0South DakotaThune 0.36Rounds 0.410.05

Committee memberships

John Thune’s 4 committee assignments in the 119th Congress ranked by seniority. Each row also shows how John Thune’s own position compares to that committee’s overall blend.

Commerce, Science, and Transportation
28 members · seniority rank 2
Δ 0.23 from center
▸Serves on 4 subcommittees
  • Aviation, Space, and Innovation
    13 members
  • Consumer Protection, Technology, and Data Privacy
    17 members
  • Surface Transportation, Freight, Pipelines, and Safety
    17 members
  • Telecommunications and Media
    28 members
Finance
27 members · seniority rank 4
Δ 0.27 from center
▸Serves on 3 subcommittees
  • Health Care
    23 members
  • International Trade, Customs, and Global Competitiveness
    17 members
  • Taxation and IRS Oversight
    19 members
Intelligence
21 members · seniority rank 10
Δ 0.27 from center
Agriculture, Nutrition, and Forestry
23 members · seniority rank 10
Δ 0.27 from center
▸Serves on 3 subcommittees
  • Commodities, Derivatives, Risk Management, and Trade
    13 members
  • Conservation, Forestry, Natural Resources, and Biotechnology
    13 members
  • Livestock, Dairy, Poultry, and Food Safety
    13 members
John Thune’s own positionCommittee’s blended position

Laws John Thune sponsored or cosponsored

Every public law that John Thune sponsored or cosponsored, newest first. Each law shows the part John Thune played, the policy area, and its closest recorded final-passage vote. Only bills that became law appear: most bills a member sponsors never do.

Loading laws…
    Data notes

    Public laws from the 93rd Congress (1973) on, from Congress.gov and GovInfo bill data, listed under the bill that was enacted. Cosponsors who withdrew are not counted. “Major” follows David Mayhew’s list of important enactments, which stops at the 118th Congress; later laws are not yet assessed. Votes and policy areas are as on the Laws page.

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    Financial disclosures · Senate

    Net worth over time

    Net worth for 2025

    $690K

    Range $315K – $1.06M

    $1M$500K$02013201520172019202120232025
    MidpointFull reported range

    JBALX - Janus Henderson Balanced Fund - Class I Filer comment: Share class changed from T to I in Calendar Year 2025. Asset previously known as JABAX.

    $75K

    Joint · Mutual Funds Mutual Fund

    $50,001 - $100,000

    TRAIX - T. Rowe Price Capital Appreciation Fund - I Clas

    $75K

    Joint · Mutual Funds Mutual Fund

    $50,001 - $100,000

    VTV - Vanguard Value ETF

    $75K

    Joint · Mutual Funds Exchange Traded Fund/Note

    $50,001 - $100,000

    Total assets$330K – $1.07M
    Total liabilities$10K – $15K
    Net worth$315K – $1.06M
    Midpoint estimate$690K

    Values are the bands reported on the filing; midpoints are our estimate. Source: Senate eFD PDF, filed in 2026.

    Members of Congress don't report a net worth. They file annual disclosures listing assets and liabilities as value ranges, like “$15,001-$50,000.” We take the midpoint of each range and subtract liabilities from assets to estimate net worth. Expect wide margins: these are estimates, best read as trends and comparisons rather than exact totals.

    How to read this

    What's in a filing. Each year, members report the previous year's assets (stocks, funds, real estate other than a personal residence, retirement accounts, business interests, bank accounts) and liabilities. A spouse's or dependent child's holdings are included; a member's home, vehicles and household goods generally are not.

    Why ranges. Each item is reported within a set band, not as an exact amount, and the bands widen as values grow. The top band is open-ended (“over $X”), so a very large holding is shown with a floor, not an estimate.

    How we estimate. Net worth is the sum of asset midpoints minus the sum of liability midpoints, so the true figure could sit well above or below ours. Filings we couldn't read with confidence are flagged, and some years are missing.

    What it can and can't tell you. Comparing a member to themselves over time is more reliable than comparing two members. A year-to-year jump can be an asset crossing into the next band.

    Years are the year each report covers, so a report filed in 2025 appears as 2024. The line traces the midpoint and the shaded band shows the full reported range. Source: Senate eFD.