Cynthia M. Lummis

Republican · WY · U.S. Senate

On the ballot in 2026

Wyoming — U.S. Senate

Cynthia M. Lummis is not among the listed candidates for this seat — the seat is still up in 2026. James W. Byrd vs. Harriet Hageman.

Full forecast, candidates and polls for this seat →

Bio

Cynthia Marie Lummis Wiederspahn is an American attorney and politician serving as the junior United States senator from Wyoming since 2021. A member of the Republican Party, Lummis served as the U.S. representative for Wyoming's at-large congressional district from 2009 to 2017. She served in the Wyoming House of Representatives from 1979 to 1983 and from 1985 to 1993, in the Wyoming Senate from 1993 to 1995, and as the Wyoming State Treasurer from 1999 to 2007.

Full bio on Wikipedia →

Record of service

In office: 13.7 years · not continuous, returned 2021
Chambers: House 8y, Senate 5.7y
First took office: 2009 (5 terms)
Seniority: 59 of 100 by time served
Age: 72
Senate class: 2 · junior senator

District offices

Cheyenne, WY · 307-772-2477
Cody, WY · 307-527-9444
Casper, WY · 307-261-6572
Sundance, WY · 307-283-3461
Afton, WY · 307-248-1736

FEC filings ↗OpenSecrets ↗GovTrack ↗C-SPAN ↗Ballotpedia ↗Vote Smart ↗House History ↗Facebook ↗Instagram ↗X/Twitter ↗

Service history, offices and identifiers from unitedstates/congress-legislators (public domain). Years served sum each term rather than subtracting the first start date, so a break in service is not counted as time in office.

Reported net worth

2020

−$5.0M

2021

$10.0M

2022

$15.7M

2023

$14.9M

2024

$15.5M

2025

$426k

Most recent filing (2025)

Assets: $6.1M – $24.7M
Liabilities: $5.0M – $25.0M
Net worth: −$18.9M – $19.7M
Since 2020: +$5.5M

From annual financial disclosures, which report every asset and debt as a bracket — so these are ranges, and the figure shown is their midpoint. A primary residence is not a reportable asset while its mortgage is a reportable debt, which pushes some members negative. How this is calculated →

Overall lean (DW-NOMINATE)

LeftCenterRight

Issue profile

Taxes & Fiscal

R+0.55

Healthcare

R+0.85

Immigration & Border

R+0.96

Guns

R+0.95

Abortion & Reproductive Rights

R+0.97

Environment & Energy

R+0.87

Crime & Policing

R+0.62

Defense & Veterans

R+0.87

Economy & Labor

R+0.65

Foreign Policy & Trade

R+0.80

Civil Rights & Social

R+0.02

Education

R+0.97

Government & Democracy

R+0.64

Judicial & Executive Nominations

R+0.83

Each issue runs left ↔ right, scored from how the member voted on bills tagged to that issue (−1…+1). Issues with too few votes are blank. Overall lean uses DW-NOMINATE.

How they score against the parties

Cynthia M. Lummis's voting record compared with each party's national platform, issue by issue — the same similarity score used across the site.

89%Closest

63%

30%

21%

Democratic Socialists (DSA)

17%

Communist Party USA

16%

On the political map

Cynthia M. Lummis (the large ringed dot) among every current member of Congress and the party platforms.

Party platforms:Communist Party USADemocratic Socialists (DSA)Green PartyDemocratic PartyRepublican PartyLibertarian Party

Each small dot is a current member (Dem · Rep); the larger dots are party platforms — click one for its closest members. Economic axis: taxes, healthcare, labor, energy. Social axis: abortion, guns, immigration, civil rights, crime.

Do you vote like Lummis?

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Caucuses & committees

Where Lummissits in Congress's own organization — each group's lean is computed from its members' voting records. Explore them all on the caucuses and committees pages.

Committees

Most and least aligned members

Treating Lummis's 14 issue scores as a vector, cosine similarity measures whether two voting records point the same way (+100%) or in opposite directions (−100%) — the colleagues whose records align most and least with theirs.