Composite score - coming soon
Mike Rounds
U.S. Senator · South Dakota
- Republican
- Since 2015
- Tenure: 2–3 terms
Refreshed 17 h ago
As of 2026-10-19 · Methodology 2026.10.1Contact info
Capitol office
716 Hart Senate Office Building Washington DC 20510
202-224-5842
District offices
Aberdeen · Pierre · Rapid City · Sioux Falls
View all contact info
- Official website
- Biographical Directory of Congress
- GovTrack
- Capitol office: 716 Hart Senate Office Building Washington DC 20510 · 202-224-5842
- 221 Brown County Highway 19 S, Suite 112, Aberdeen, SD, 57401 · 605-225-0366
- 111 W. Capitol Ave., Suite 210, Pierre, SD, 57501 · 605-224-1450
- 603 Omaha St., Suite 100, Rapid City, SD, 57701 · 605-343-5035
- 320 N. Main Ave., Suite A, Sioux Falls, SD, 57104 · 605-336-0486
Evidence & sources
U.S. Senate roll-call votes
Votes and participation (senate.gov)
Congress.gov bill records
Sponsored and enacted bills
congress-legislators
Terms, committees, offices
Stale, last successful update 2026-10-23
View all sourcesExplore this record
Scorecard
Voting Record
73.2/ 100
Ranked 17 of 52 in the Senate majority
Voting Record
73.2/ 100
How this score is calculated:
Roll calls cast
907 of 911 while seated (99.6%)
85th percentile in cohort · 30 % weight
Substantive bills sponsored
61 of 62 sponsored · 70.9 points
68th percentile in cohort · 70 % weight
Bills enacted
0 sponsored · 3 cosponsored
2 passed a chamber · 3 reported · 56 introduced
Promise Adherence
0 of 5 promises scored
Collecting data - coming soon
Promise Adherence
0 of 5 promises scored
How this score is calculated:
Reviewed promises
0 scored of 5 needed
0 promises from 0 sources this term
Days in office this term
2,129 days (180 needed)
Promise capture coverage
0 of 3 source kinds settled
What counts toward promise adherence
0 promises from 0 sources for this term · 0 scored · 0 aspirational, displayed but not scored. Scores start at 50 and move with evidence.
The adherence score is withheld until every check below is met; it never shows a zero for missing evidence.
- Not yet 5 scored promises · 0 of 5 so far
- Met 180 days in office · 2129 days so far
- Not yet Complete capture coverage · 0 of 3 source kinds settled
Capture checklist
The source kinds searched for this term's promises, so the score never rests on whichever promises happened to be collected.
- Not yet captured Campaign issues page
- Not yet captured Announcement or acceptance speech
- Not yet captured Debate transcript or candidate questionnaire
Weights and floors are methodology parameters; see how these are computed.
What counts toward effectiveness
61 substantive bills sponsored · 3 cosponsored bills enacted · 907 of 911 roll calls cast. Points by the furthest stage each sponsored bill reached: introduced 1, reported 2, passed a chamber 4, enacted 8; the highest-scoring bills are listed.
- S 1473: Stop Stealing our Chips Act · furthest stage floor pass (4 points)
- S 1055: Indian Health Service Emergency Claims Parity Act · furthest stage floor pass (4 points)
- S 105: Wounded Knee Massacre Memorial and Sacred Site Act · furthest stage report (2 points)
- S 3736: Dakota Mainstem Water Supply Project Feasibility Study Act · furthest stage report (2 points)
- S 287: Marcella LeBeau Recognition Act · furthest stage report (2 points)
- S 699: Purchased and Referred Care Improvement Act of 2025 · furthest stage introduce (1 points)
- S 480: Timber Harvesting Restoration Act of 2025 · furthest stage introduce (1 points)
- S 2528: Unleashing AI Innovation in Financial Services Act · furthest stage introduce (1 points)
Roll-call attendance by session
- Senate 119-1: 655 of 659 roll calls cast, 4 not voting
- Senate 119-2: 252 of 256 roll calls cast, 0 not voting, 4 recorded leave of absence
Public opinion polls
The published surveys behind the Approval Rating, each with its pollster, dates and sample; job approval and favorability are different questions and are labeled as such.
No public approval survey on record for this office.