Composite score - coming soon
Cynthia M. Lummis
U.S. Senator · Wyoming
- Republican
- Since 2021
- Tenure: 4+ terms
Refreshed 17 h ago
As of 2026-10-19 · Methodology 2026.10.1Contact info
Capitol office
127A Russell Senate Office Building Washington DC 20510
202-224-3424
District offices
Afton · Casper · Cheyenne · Cody · Sundance
View all contact info
- Official website
- Biographical Directory of Congress
- GovTrack
- Capitol office: 127A Russell Senate Office Building Washington DC 20510 · 202-224-3424
- 80 1st Avenue, Suite 105, Afton, WY, 83110 · 307-248-1736
- 100 East B Street, Suite 3201, Dick Cheney Federal Building, Casper, WY, 82602 · 307-261-6572
- 2120 Capitol Avenue, Suite 2007, Federal Center, Cheyenne, WY, 82001 · 307-772-2477
- 1285 Sheridan Avenue, Suite 215, Cody, WY, 82414 · 307-527-9444
- 120 North 4th Street, Sundance, WY, 82729 · 307-283-3461
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
49.3/ 100
Ranked 22 of 52 in the Senate majority
Voting Record
49.3/ 100
How this score is calculated:
Roll calls cast
885 of 908 while seated (97.5%)
30th percentile in cohort · 30 % weight
Substantive bills sponsored
41 of 41 sponsored · 61.9 points
58th percentile in cohort · 70 % weight
Bills enacted
2 sponsored · 3 cosponsored
2 passed a chamber · 0 reported · 37 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
2,130 days (180 needed)
Promise capture coverage
0 of 3 source kinds settled
Recent activity
| Date | Action | Policy | Status |
|---|---|---|---|
| 2025-06-10 | Sponsored | S 2010 — TERMS Act | Proposed |
| 2025-06-09 | Voted yea on “On the Cloture Motion PN13-6”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-06-09 | Voted yea on “On the Nomination PN26-43”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-06-09 | Sponsored | S 1991 — Delivering On Government Efficiency in Spending Act | Proposed |
| 2025-06-09 | Sponsored | S 1983 — No WHO Pandemic Preparedness Treaty Without Senate Approval Act | Proposed |
| 2025-06-05 | Voted yea on “On the Cloture Motion PN26-43”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-06-05 | Voted yea on “On the Nomination PN26-16”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-06-05 | Voted yea on “On the Cloture Motion PN26-16”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-06-05 | Voted yea on “On the Nomination PN12-33”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-06-04 | Not voting on “On the Nomination PN55-47”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-06-04 | Voted yea on “On the Nomination PN55-9”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-06-04 | Voted yea on “On the Cloture Motion PN12-33”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-06-04 | Voted yea on “On the Cloture Motion PN55-47”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-06-04 | Voted yea on “On the Cloture Motion PN55-9”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-06-04 | Sponsored | S 1705 — Chip Security Act | Proposed |
| 2025-06-03 | Voted yea on “On the Nomination PN22-16”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-06-03 | Voted yea on “On the Cloture Motion PN22-16”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-06-03 | Voted yea on “On the Nomination PN25-19”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-06-03 | Voted yea on “On the Cloture Motion PN25-19”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-06-03 | Voted yea on “On the Nomination PN17”Nomination Confirmed | No bill (motion or nomination) | |
| 2025-06-03 | Sponsored | SJRES 56 — Life Month Resolution | Proposed |
| 2025-06-02 | Voted yea on “On the Cloture Motion PN17”Cloture Motion Agreed to | No bill (motion or nomination) | |
| 2025-05-22 | Voted yea on “On the Joint Resolution H.J.Res. 89”Joint Resolution Passed | HJRES 89 — Providing congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "California State Motor Vehicle and Engine and Nonroad Engine Pollution Control Standards; The 'Omnibus' Low NOX Regulation; Waiver of Preemption; Notice of Decision". | Passed 2025-06-12 |
| 2025-05-22 | Voted yea on “On the Motion to Proceed H.J.Res. 89”Motion to Proceed Agreed to | HJRES 89 — Providing congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "California State Motor Vehicle and Engine and Nonroad Engine Pollution Control Standards; The 'Omnibus' Low NOX Regulation; Waiver of Preemption; Notice of Decision". | Passed 2025-06-12 |
| 2025-05-22 | Voted yea on “On the Joint Resolution H.J.Res. 87”Joint Resolution Passed | HJRES 87 — Providing congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "California State Motor Vehicle and Engine Pollution Control Standards; Heavy-Duty Vehicle and Engine Emission Warranty and Maintenance Provisions; Advanced Clean Trucks; Zero Emission Airport Shuttle; Zero-Emission Power Train Certification; Waiver of Preemption; Notice of Decision". | Passed 2025-06-12 |