U.S. Senate · SDBioguide ID R000605
Mike Rounds
U.S. Senator for South Dakota
Republican
In Congress since2015
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On the record
- Yes
- 668
- No
- 239
- Present
- 0
- Did not vote
- 8
Missed 0.9% of roll calls. Chamber median 2.1%.
The full voting record50%Chamber median 99%100%
Counts roll calls where most Democrats and most Republicans voted differently, leaving out procedural votes.
How we count- Introduced
- 65
- Passed committee
- 6
- Passed a chamber
- 3
- Became law
- 0
- Individuals
- $1.6M
- PACs
- $1.6M
- Party
- $62K
- Other
- $529K
From FEC filings, Voteview roll calls and Congress.gov.
Republican. In Congress since 2015, 2 terms in total.
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Bills sponsored, 119th Congress
Bills and resolutions where Rounds is the primary sponsor. Most bills never leave committee; that is normal for every member. Source: Congress.gov, last updated Oct 29, 2026.
- Sponsored
- 65
- Passed committee
- 6
- Passed a chamber
- 3
- Became law
- 0
37 of 65 have at least one cosponsor from the other party.
Dakota Mainstem Water Supply Project Feasibility Study Act
Introduced Jan 29, 2026. 1 cosponsor. S. 3736 on Congress.gov(opens in a new tab)
Passed committee
Marcella LeBeau Recognition Act
Introduced Jan 28, 2025. 1 cosponsor. S. 287 on Congress.gov(opens in a new tab)
Passed committee
Wounded Knee Massacre Memorial and Sacred Site Act
Introduced Jan 15, 2025. 1 cosponsor. S. 105 on Congress.gov(opens in a new tab)
Passed committee