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Mike Rounds

Mike Rounds is an American Republican politician who has served as a U.S. senator from South Dakota since 2015 and was governor of South Dakota from 2003 to 2011; in November 2026 he won a third Senate term.

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Key facts

1954–1977Birth and Education

Rounds, born Marion Michael Rounds on October 24, 1954, in Huron, South Dakota, was the eldest of 11 children and was named after an uncle who died in World War II.⁠[1]

In 1977 he received a bachelor’s degree in political science from South Dakota State University.⁠[1][2]

Before Office: Insurance and Real Estate Business

After college Rounds worked in insurance and real estate, building an insurance and real estate business with offices throughout South Dakota.⁠[1][3]

1990–2000South Dakota State Senate

In 1990 Rounds won election to the South Dakota Senate from District 24, which includes the state capital, Pierre; he was elected to the State Senate five times between 1991 and 2000.⁠[1][4]

He served as minority whip in 1993–94 and became majority leader in 1995, a post he held for six years; he left the State Senate in 2000 after reaching the term limit.⁠[1][3]

2002–2011Governor of South Dakota

Rounds was elected governor of South Dakota in 2002, took office in 2003 and was re-elected in 2006, serving as the state’s 31st governor until 2011.⁠[1][3]

In office he worked to improve higher education, overseeing new research facilities and doctoral programs; his Senate office says that as governor he focused on growing the economy, keeping taxes low and strengthening families.⁠[1][4]

2012–2015Election to the U.S. Senate

A year after leaving the governorship, Rounds announced a Senate run in 2012. In the 2014 general election he won with 50.4% of the vote, defeating Democrat Rick Weiland (29.5%) and independents Larry Pressler (17.1%) and Gordon Howie (3%).⁠[1][2]

He was sworn in as a U.S. senator from South Dakota on January 6, 2015.⁠[4]

November 2020First Re-election

In the general election on November 3, 2020, Rounds was re-elected with 65.7% of the vote, defeating Democrat Dan AhlersDan AhlersDan Ahlers is a South Dakota Democratic politician and Dell Rapids small-business owner who served in the South Dakota House of Representatives and state Senate. He was the Democratic nominee for the U.S. Senate in 2020 and for governor of South Dakota in 2026.Open the full entry (34.3%).⁠[2]

May 2024Senate Roadmap for Artificial Intelligence Policy

On May 15, 2024, Rounds, Senate Majority Leader Chuck Schumer and Senators Martin Heinrich and Todd Young released a bipartisan roadmap for artificial intelligence policy in the U.S. Senate, following nine all-senator AI Insight Forums the four had hosted over the previous year.⁠[5]

June–August 2026: Republican Primary and General-Election Field

On June 2, 2026, Rounds won the Republican U.S. Senate primary with 75.8% of the vote, defeating Justin McNeal (24.2%).⁠[2][6]

After the primary he said his priorities included economic growth, agriculture, veterans’ services and national defense, and he highlighted Ellsworth Air Force Base, the 114th Fighter Wing and the National Guard.⁠[6]

Julian Beaudion won the Democratic primary, and retired Lt. Col. Brian Bengs ran as an independent. Beaudion ended his campaign in August 2026, leaving Bengs as Rounds’s only challenger; Bengs had run for the Senate as a Democrat in 2022 and lost to John Thune.⁠[6][7]

November 2026Third Senate Term

In the general election on November 3, 2026, Rounds defeated independent Brian Bengs to win a third Senate term; the Associated Press declared him the winner at 12:02 a.m. EST on November 4. During the campaign Bengs had said that, if elected, he would not caucus with either party.⁠[8][9]

Senate Committee Assignments

Rounds serves on the Senate Appropriations, Armed Services, Banking, Housing and Urban Affairs, and Indian Affairs committees and the Select Committee on Intelligence. In the 119th Congress (2025–2026) he chairs the Armed Services Subcommittee on Cybersecurity and the Banking Subcommittee on Securities, Insurance, and Investment.⁠[4][2]

He lives in Fort Pierre, South Dakota.⁠[4]

Related Organizations, Websites, and Public Accounts

Office of U.S. Senator Mike Rounds: Official website: https://www.rounds.senate.gov/ (opens in a new window).⁠[10]

X: Public account: https://x.com/senatorrounds (opens in a new window).⁠[10]

YouTubeYouTubeYouTube is Google’s video-sharing and creator platform, founded in 2005 by Steve Chen, Chad Hurley, and Jawed Karim and acquired by Google in 2006. Built around video uploading, viewing, and creator earnings, the platform has developed Shorts, YouTube Music, Premium, YouTube TV, and products for children, and is headquartered in San Bruno, California, United States.Open the full entry: Public channel: https://www.youtube.com/channel/UC-pvzimyBdpdkcIfsicrfrQ (opens in a new window).⁠[10]

Sources

  1. Mike Rounds (opens in a new window)
  2. Mike Rounds (opens in a new window)
  3. Senator Mike Rounds - Official Biography (opens in a new window)
  4. About Mike | U.S. Senator Mike Rounds (opens in a new window)
  5. Following Historic AI Insight Forums Over The Past Year, Leader Schumer, Senators Rounds, Heinrich, And Young Reveal Bipartisan Roadmap For Artificial Intelligence Policy In The United States Senate (opens in a new window)
  6. South Dakota Senate race set: Rounds, Bengs and Beaudion head to Nov. 3 election (opens in a new window)
  7. Dem drops US Senate bid, leaving independent candidate as lone challenger to incumbent GOP Sen Mike Rounds (opens in a new window)
  8. Republican Mike Rounds wins reelection to U.S. Senate from South Dakota (opens in a new window)
  9. Mike Rounds wins re-election to U.S. Senate (opens in a new window)
  10. Home | U.S. Senator Mike Rounds of South Dakota (opens in a new window)