Cynthia M. Lummis

U.S. Senator · Wyoming · Republican

From public records: votes from Voteview, bills from congress.gov, money from FEC filings · votes updated Nov 4, 2026 · How we measure

Effectiveness, 119th Congress so far

How it’s measured

1.63· expected 1.04

Above expectations

Rank 14 of 100 in the Senate · expected = average of 32 majority-party members without a committee lead

How far Lummis’s own bills got, weighted by substance. The average member scores 1.00.

44 bills and joint resolutions sponsored: 2 significant (got a roll call vote), 42 substantive, 0 commemorative. Compare the Senate

Became law (2)

1 commemorative · 1 technical

S. 790 A bill to redesignate the National Historic Trails Interpretive Center in Casper, Wyoming, as the "Barbara L. Cubin National Historic Trails Interpretive Center".Renames the National Historic Trails Interpretive Center in Casper, Wyoming after Barbara L. Cubin. AI-readBecame law Sep 25, 2026 · Public Lands and Natural ResourcesCommemorative
S. 284 Congressional Award Program Reauthorization ActReauthorizes the Congressional Award Program through fiscal year 2028 and modifies medal requirements. AI-readBecame law Dec 26, 2025 · CongressTechnical

Scope tags come from an AI reading of each bill where available, otherwise from its title and policy area. They don’t change the score. How scope is tagged

Became law inside another bill (1)

S.J.Res. 89 A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Bureau of Land Management relating to "Buffalo Field Office Record of Decision and Approved Resource Management Plan Amendment".Identical bill became law as H.J.Res. 130 · Dec 11, 2025Via H.J.Res. 130

Lummis’s own bill stalled, but the Congressional Research Service lists an identical bill, or one with similar text, that became law. Shown for context; not counted in the score, which follows the Center for Effective Lawmaking. How this works

How Lummis’s ratings compare with every senator

Ratings, 119th Congress

Scores run 0–100 and always sit next to a median. Each tick is one senator; the ringed marker is Lummis.

Lummis in plain answers: party votes, bipartisanship, who votes alike

Attendance

How it’s measured

97/ 100

Chamber median 98 · 30 missed of 915

Voted on 885 of 915 roll calls; missed 30. Lower than 68% of senators.

85%100%

Party loyalty

How it’s measured

100/ 100

Senate R median 100 · Rank 15 of 53

Sided with the Republican majority on 813 votes that split the parties. Higher than 84% of senators.

75%100%

Bipartisan

How it’s measured

8/ 100

Chamber median 9 · −1

Average agreement with members of the other party on contested votes. Lower than 77% of senators.

0%30%

Position

How it’s measured

+0.68

Republican middle 80%: 0.38 to 0.78

Left–right position from roll-call similarity (DW-NOMINATE, Voteview), from −1 to +1. Members who vote alike sit near each other.

LiberalConservative

Lummis’s bills that made it out of committee or further

All bills

4 bills and joint resolutions sponsored in the 119th Congress, furthest along first. These are the bills counted in Lummis’s effectiveness score.

S. 790 A bill to redesignate the National Historic Trails Interpretive Center in Casper, Wyoming, as the "Barbara L. Cubin National Historic Trails Interpretive Center".Renames the National Historic Trails Interpretive Center in Casper, Wyoming after Barbara L. Cubin. AI-readPublic Lands and Natural Resources · Became law Sep 25, 2026Substantive227 words Commemorative
S. 284 Congressional Award Program Reauthorization ActReauthorizes the Congressional Award Program through fiscal year 2028 and modifies medal requirements. AI-readCongress · Became law Dec 26, 2025Substantive197 words Technical
S. 2273 Wyoming Education Trust Modernization ActModernizes Wyoming's education trust fund management and investment authorities. AI-readPublic Lands and Natural Resources · Introduced Oct 5, 2026Substantive87 words Introduced
S. 1525 Common Cents ActEnds penny production, requires cash transactions to round to nearest five cents, allows nickel material changes. AI-readFinance and Financial Sector · Introduced Aug 10, 2026SubstantiveText pending Introduced

Stage comes from each bill’s latest action on congress.gov; the full history is on each bill page.