Catherine Cortez Masto

U.S. Senator · Nevada · Democrat

From public records: votes from Voteview, bills from congress.gov, money from FEC filings · votes updated Nov 11, 2026 · How we measure

Effectiveness, 119th Congress so far

How it’s measured

1.98· expected 0.63

Above expectations

Rank 10 of 100 in the Senate · expected = average of 29 minority-party members without a committee lead

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

113 bills and joint resolutions sponsored: 1 significant (got a roll call vote), 112 substantive, 0 commemorative. Compare the Senate

Became law inside another bill (1)

S. 392 Sloan Canyon Conservation and Lateral Pipeline ActIdentical bill became law as H.R. 972 · May 19, 2026Via H.R. 972

Cortez Masto’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 Cortez Masto’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 Cortez Masto.

Cortez Masto in plain answers: party votes, bipartisanship, who votes alike

Attendance

How it’s measured

98/ 100

Chamber median 98 · 18 missed of 916

Voted on 898 of 916 roll calls; missed 18. Higher than 52% of senators.

85%100%

Party loyalty

How it’s measured

92/ 100

Senate D median 96 · Rank 39 of 47

Sided with the Democratic majority on 826 votes that split the parties. Lower than 89% of senators.

75%100%

Bipartisan

How it’s measured

14/ 100

Chamber median 9 · +5

Average agreement with members of the other party on contested votes. Higher than 90% of senators.

0%30%

Position

How it’s measured

−0.34

Democratic middle 80%: -0.51 to -0.23

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

LiberalConservative

Cortez Masto’s bills that passed the Senate or further

All bills

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

S. 1574 Tribal Access to Electronic Evidence ActAllows tribal courts to execute warrants for electronic communications and records. AI-readNative Americans · Introduced Oct 5, 2026SubstantiveText pending Introduced
S. 3041 Tribal Warrant Fairness ActAuthorizes U.S. Marshals Service to assist tribal law enforcement with fugitives and missing children. AI-readNative Americans · Introduced Jun 15, 2026Substantive204 words Introduced
S. 327 HONOR ActProhibits taxpayers from claiming foreign tax credits or deductions for taxes paid to Russia. AI-readTaxation · Introduced Mar 16, 2026Substantive308 words Introduced
S. 546 Technical Correction to the Shoshone-Paiute Tribes of the Duck Valley Reservation Water Rights Settlement Act of 2025Authorizes deposit of interest payments into the Shoshone-Paiute Tribes Water Rights Development Fund. AI-readNative Americans · Introduced Dec 15, 2025Substantive99 words Introduced
S. 390 BADGES for Native Communities ActEstablishes grant programs and procedures for investigating missing and murdered Native Americans. AI-readNative Americans · Introduced Dec 15, 2025Substantive3.3k words Introduced
S. 911 Chief Herbert D. Proffitt Act of 2025Honors Chief Herbert D. Proffitt with commemorative designation. AI-readCrime and Law Enforcement · Passed a chamber Aug 1, 2025Substantive285 words Passed a chamber

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