InsideGov

Senator

Mike Rounds

South Dakota · Republican

In the Senate since 2015 · 6 Congresses served

About

Marion Michael Rounds is an American businessman and politician serving as the junior United States senator from South Dakota since 2015. A member of the Republican Party, he served as the 31st governor of South Dakota from 2003 to 2011.

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

In the 119th Congress

Mike Rounds sits 56th 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
Rounds
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. 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. John ThuneR-SDSen. 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

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

0.250.500.752015201720192021202320252023: 0.302023: 0.55

South Dakota delegation · both senators on dimension 1

Mike Rounds and their seatmate, gap 0.05. All 50 delegations →

-1.0-0.50.00.51.0South DakotaThune 0.36Rounds 0.410.05

Committee memberships

Mike Rounds’s 6 committee assignments in the 119th Congress ranked by seniority. Each row also shows how Mike Rounds’s own position compares to that committee’s overall blend.

Banking, Housing, and Urban Affairs
24 members · seniority rank 3
Δ 0.28 from center
▸Serves on 3 subcommittees
  • Securities, Insurance, and InvestmentChair
    17 members
  • Economic Policy
    11 members
  • Housing, Transportation, and Community Development
    13 members
Commission on Security and Cooperation in Europe
9 members · seniority rank 4
Δ 0.26 from center
Indian Affairs
11 members · seniority rank 4
Δ 0.34 from center
Armed Services
27 members · seniority rank 4
Δ 0.26 from center
▸Serves on 3 subcommittees
  • CybersecurityChair
    11 members
  • Emerging Threats and Capabilities
    17 members
  • Strategic Forces
    13 members
Intelligence
21 members · seniority rank 7
Δ 0.32 from center
Appropriations
28 members · seniority rank 13
Δ 0.37 from center
▸Serves on 6 subcommittees
  • Agriculture, Rural Development, Food and Drug Administration, and Related Agencies
    16 members
  • Department of Interior, Environment, and Related Agencies
    15 members
  • Departments of Labor, Health and Human Services, and Education, and Related Agencies
    17 members
  • Energy and Water Development
    17 members
  • Legislative Branch
    7 members
  • Military Construction, Veterans Affairs, and Related Agencies
    16 members
Mike Rounds’s own positionCommittee’s blended position

Laws Mike Rounds sponsored or cosponsored

Every public law that Mike Rounds sponsored or cosponsored, newest first. Each law shows the part Mike Rounds 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

    $8.03M

    Range $3.45M – $12.6M

    $30M$20M$10M$0201520172019202120232025
    MidpointFull reported range

    Roundtable Farm Description: Farmland (Lyman County, SD) Filer comment: Underlying asset of Roundtable, LLC

    $3M

    Self · Farm/Ranch

    $1,000,001 - $5,000,000

    Bankwest (Pierre, SD) Type: Checking

    $375K

    Self · Bank Deposit

    $250,001 - $500,000

    BND - Vanguard Total Bond Market ETF

    $375K

    Self · Mutual Funds Exchange Traded Fund/Note

    $250,001 - $500,000

    Total assets$4.45M – $13.1M
    Total liabilities$500K – $1M
    Net worth$3.45M – $12.6M
    Midpoint estimate$8.03M

    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.