Cynthia M. Lummis
U.S. Senator from Wyoming since 2021. Did not run for re-election in 2026; leaves office in January 2027.
U.S. Senator from WyomingBorn 1954
- In office
- 5 yrs
- Since 2021
- Bills became law
- 2
- 48 sponsored, 119th Congress
- Votes missed
- 3.3%
- Chamber median 2.1%
- With party
- 100%
- On votes splitting the parties
- Last margin
- +46.3
- Won 2020
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Nov 7, 2026, 3:00 PM ET
Committees
119th Congress.
- Senate Committee on Banking, Housing, and Urban AffairsFinancial Institutions and Consumer ProtectionSecurities, Insurance, and InvestmentDigital Assets · Chairman
- Senate Committee on Commerce, Science, and TransportationTelecommunications and MediaConsumer Protection, Technology, and Data PrivacyScience, Manufacturing, and Competitiveness
- Senate Committee on Environment and Public WorksClean Air, Climate, and Nuclear Innovation and Safety · ChairmanFisheries, Water, and WildlifeTransportation and Infrastructure
Source: congress-legislators committeesUpdated Nov 7, 2026, 3:00 PM ET
Legislation
Public Lands and Natural Resources · Became law Sep 2026
Source: Congress.gov billsUpdated Nov 6, 2026, 3:27 PM ET
Voting record
Where Lummis sits in the U.S. Senate
Lummis is closer to the center than 11% of the chamber's Republicans.
Closest: Eric Schmitt, Rick Scott, John Barrasso
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 5:06 PM ET
With Lummis’s party
- Votes with the chamber's Republicans100%
- Cosponsorships of the other party's bills16%
Black tick: the average of Republicans in the U.S. Senate.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Lummis’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Lummis | Rep. majority | Dem. majority | Result |
|---|---|---|---|---|---|
| Jun 5, 2026 | S 2: Secure America Act | Yes | Yes | No | Passed 52–47 |
| Apr 16, 2026 | HJRES 140: Providing for congressional disapproval under chapter 8 of title 5, United States Code,… | Yes | Yes | No | Passed 50–49 |
| Feb 12, 2026 | HJRES 142: Disapproving the action of the District of Columbia Council in approving the D.C.… | Yes | Yes | No | Passed 49–47 |
| Jan 30, 2026 | HR 7148: Consolidated Appropriations Act, 2026 | Yes | Yes | No | Passed 71–29 |
| Dec 4, 2025 | HJRES 131: Providing for congressional disapproval under chapter 8 of title 5, United States Code,… | Yes | Yes | No | Passed 49–45 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Lummis was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Elections
Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.
| Year | Race | Result | Margin |
|---|---|---|---|
| 2020 | U.S. Senate, Wyoming | Won | R+46.3 |
| 2014 | U.S. House, WY-AL | Won | R+45.7 |
| 2012 | U.S. House, WY-AL | Won | R+45.1 |
| 2010 | U.S. House, WY-AL | Won | R+46.0 |
| 2008 | U.S. House, WY-AL | Won | R+9.8 |
Source: 99chambers results archive
Seats Lummis has held
- U.S. Senate, Wyoming · 2021–2027
- U.S. House, WY-AT-LARGE · 2009–2017
Source: 99chambers results archive
Who Lummis has run against
- Merav Ben David (D) · 2020 general, won
- Richard Grayson (D) · 2014 general, won
- Chris Henrichsen (D) · 2012 general, won
- David Wendt (D) · 2010 general, won
- Gary Trauner (D) · 2008 general, won
Source: 99chambers results archive
How we know Lummis
One person, matched across every source we use.
- Bioguide L000571
- FEC H8WY00148
- Wikidata Q456064
- Ballotpedia Cynthia Lummis
- Vote Smart 15546
- GovTrack 412294
- OpenSecrets N00029788
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Nov 7, 2026, 3:00 PM ET