Mike Rounds
Republican · SD · U.S. Senate
Mike Rounds is on the ballot. No Democratic candidate vs. Mike Rounds.
Bio
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.
Full bio on Wikipedia →Record of service
- In office
- 11.7 years
- First took office
- 2015 (2 terms)
- Seniority
- 65 of 100 by time served
- Age
- 71
- Senate class
- 2 · junior senator
- Pierre, SD · 605-224-1450
- Sioux Falls, SD · 605-336-0486
- Aberdeen, SD · 605-225-0366
- Rapid City, SD · 605-343-5035
Service history, offices and identifiers from unitedstates/congress-legislators (public domain). Years served sum each term rather than subtracting the first start date, so a break in service is not counted as time in office.
Reported net worth
- Assets
- $4.5M – $13.1M
- Liabilities
- $500k – $1.0M
- Net worth
- $3.5M – $12.6M
- Since 2018
- +$3.5M
From annual financial disclosures, which report every asset and debt as a bracket — so these are ranges, and the figure shown is their midpoint. A primary residence is not a reportable asset while its mortgage is a reportable debt, which pushes some members negative. How this is calculated →
Overall lean (DW-NOMINATE)
Issue profile
Each issue runs left ↔ right, scored from how the member voted on bills tagged to that issue (−1…+1). Issues with too few votes are blank. Overall lean uses DW-NOMINATE.
How they score against the parties
Mike Rounds's voting record compared with each party's national platform, issue by issue — the same similarity score used across the site.
On the political map
Mike Rounds (the large ringed dot) among every current member of Congress and the party platforms.
Each small dot is a current member (Dem · Rep); the larger dots are party platforms — click one for its closest members. Economic axis: taxes, healthcare, labor, energy. Social axis: abortion, guns, immigration, civil rights, crime.
Do you vote like Rounds?
Answer a few questions on the issues and see which members of Congress — and which party — actually line up with you.
Caucuses & committees
Where Roundssits in Congress's own organization — each group's lean is computed from its members' voting records. Explore them all on the caucuses and committees pages.
Committees
- Commission on Security and Cooperation in Europecenter · 9 members
- Senate Committee on Indian Affairscenter · 11 members
- Senate Select Committee on Intelligencecenter · 21 members
- Senate Committee on Appropriationscenter · 28 membersEnergy and Water DevelopmentDepartment of Interior, Environment, and Related AgenciesDepartments of Labor, Health and Human Services, and Education, and Related AgenciesMilitary Construction, Veterans Affairs, and Related AgenciesAgriculture, Rural Development, Food and Drug Administration, and Related AgenciesLegislative Branch
- Senate Committee on Armed Servicescenter · 27 members
- Senate Committee on Banking, Housing, and Urban Affairscenter · 24 members
Most and least aligned members
Treating Rounds's 14 issue scores as a vector, cosine similarity measures whether two voting records point the same way (+100%) or in opposite directions (−100%) — the colleagues whose records align most and least with theirs.
Recent notable votes
Latest news
Deep Red State GOP Senator Scrubs Trump Mentions From Campaign WebsiteDonald Trump may want Republicans to vote like he's on the midterm ballot, but Sen. Mike Rounds doesn't appear to want to dwell on any association with Trump. The post Deep Red State GOP Senator Scrubs Trump Mentions From Campaign Website first appeared on Me…
Mediaite · Yesterday
Trump’s Illegal Campaign Ads Are an Admission of DefeatThis week, one of the most talked-about stories has been President Donald Trump’s decision to spend taxpayer money on campaign ads that the administration is misleadingly characterizing as “public service announcements.” The move is vintage Trump in that the …
The New Republic · October 3, 2026
Bipartisan frustration builds as Senators seek transparency from PentagonWASHINGTON (AP) — Tensions are mounting between the Pentagon and Congress over the flow of information to lawmakers about the U.S. military's priorities, with both Democrats and Republicans accusing a Defense Department leader of being frustratingly opaque. …
Yahoo Entertainment · September 17, 2026
Exclusive: Navy Veteran Brian Bengs Takes on Big Money in South Dakota as Independent US Senate CandidateBengs, who previously ran for office, is channeling an anti-corruption campaign against Republican incumbent Sen. Mike Rounds.
Military.com · September 10, 2026
Recent coverage via NewsAPI, refreshed daily.