Cynthia M. Lummis
RepublicanU.S. Senator, WY| Age | 71 (b. 1954-09-10) |
| Gender | Female |
| In office since | 2009-01-06 (~17 yrs) |
| Race / ethnicity | White (German immigrant descent; family settled in Wyoming in 1868) |
| Religion | Lutheran (Lutheran Church–Missouri Synod) |
| Education | University of Wyoming: B.S. in Animal Science (1976), B.S. in Biology (1978), and Juris Doctor (1985) |
| Prior occupation | Rancher/cattle rancher and attorney |
| Military service | No |
| Birthplace | Cheyenne, Wyoming |
| Marital status | Widowed — Alvin Wiederspahn (married 1983; died October 24, 2014) |
| Children | 1 |
| Residence | Cheyenne, Wyoming |
| Notable relatives | Father Doran Lummis chaired the Laramie County Republican Party and served on the county board; brother Del Lummis also chaired the Laramie County Republican Party; daughter Annaliese Wiederspahn (political consultant/communications) |
Pending research: languages · openly lgbtq.
Career & politics
| First elected | 1978 (Wyoming House of Representatives; first elected to U.S. Senate in 2020) |
| Previous offices | Wyoming House of Representatives (1979–1983; 1985–1993) · Wyoming Senate, 5th district (1993–1995) · Wyoming State Treasurer (1999–2007) · U.S. House of Representatives, Wyoming at-large (2009–2017) |
| Committees | Senate Committee on Banking, Housing, and Urban Affairs · Senate Committee on Environment and Public Works · Senate Committee on Commerce, Science, and Transportation |
| Caucuses | House Freedom Caucus (during House tenure) · Tea Party Caucus (during House tenure) · Congressional Western Caucus |
| Leadership | Vice Chair, Congressional Western Caucus (House) · Co-Chair, Congressional Caucus for Women's Issues (House, 2011–2013) · Chair, House Science Subcommittee on Energy (2013) |
| Ideology | Consistently ranked among the most conservative members of the Senate; ranked 5th most conservative U.S. Senator in a June 2025 Institute for Legislative Analysis study; strongly conservative DW-NOMINATE lean. |
| Signature legislation | Lummis-Gillibrand Responsible Financial Innovation Act (S.4356, 117th Congress) - comprehensive digital asset regulatory framework · BITCOIN Act / Strategic Bitcoin Reserve proposal (2024) - proposing U.S. acquisition of a strategic Bitcoin reserve · Free Speech Protection Act (with Sen. Rand Paul, 2023) |
Financial
Net worth: disclosed $5,700,000–$24,000,000 (2023) · estimate
| Laramie River Ranch LLC (ranch land) | real_estate · $1,000,000–$5,000,000 · 2025 |
| Lummis Livestock Company | business_owned · $1,000,000–$5,000,000 · 2025 |
| Arp & Hammond Hardware Company | business_owned · $1,000,000–$5,000,000 · 2025 |
| Sweetgrass | real_estate · $1,000,000–$5,000,000 · 2025 |
| Qualified Blind Trust | other · $250,000–$1,000,000 · 2025 |
| Bitcoin (BTC) | other · $50,001–$100,000 · 2021 |
Top donors: Paradigm Operations (top donor to Lummis Victory Cmte, 2024 cycle) ($34,800) · Senate Conservatives Fund (leadership PAC support) ($146,748)
Top industries: Oil & Gas · Securities & Investment / Cryptocurrency · Agriculture / Crop Production & Agricultural Services
Scandals & crimes ledger
No recorded incidents. Under the adjudicated-only methodology, an entry appears only when a court or official body has formally acted and the record is cited.