Bill Cassidy

U.S. Senator · Louisiana · Republican · Chair, Health, Education, Labor, and Pensions

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From public records: votes from Voteview, bills from congress.gov, money from FEC filings · votes updated Nov 10, 2026 · How we measure

Effectiveness, 119th Congress so far

How it’s measured
1.97· expected 1.48

Meets expectations

Rank 11 of 100 in the Senate · expected = average of 21 majority-party committee chairs

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

  1. Introduced 106
  2. Action in committee 12
  3. Action beyond committee 10
  4. Passed chamber 5
  5. Became law 1

106 bills and joint resolutions sponsored: 1 significant (got a roll call vote), 104 substantive, 1 commemorative. Compare the Senate

Became law (1)

1 national policy

  • S. 331 HALT Fentanyl ActPermanently schedules fentanyl-related substances as controlled substances. AI-readBecame law Jul 16, 2025 · Crime and Law EnforcementNational policy

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

How Cassidy’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 Cassidy.

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

Attendance

How it’s measured
95/ 100

Chamber median 98 · 50 missed of 915

Voted on 865 of 915 roll calls; missed 50. Lower than 84% of senators.

85%100%

Party loyalty

How it’s measured
98/ 100

Senate R median 100 · Rank 44 of 53

Sided with the Republican majority on 797 votes that split the parties. Lower than 60% of senators.

75%100%

Bipartisan

How it’s measured
10/ 100

Chamber median 9 · +1

Average agreement with members of the other party on contested votes. Higher than 70% of senators.

0%30%

Position

How it’s measured
+0.46

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

Cassidy’s bills that became law

All bills

1 bill sponsored in the 119th Congress, furthest along first. These are the bills counted in Cassidy’s effectiveness score.

1 national policy

How we count words
  • S. 331 HALT Fentanyl ActPermanently schedules fentanyl-related substances as controlled substances. AI-readCrime and Law Enforcement · Became law Jul 16, 2025SubstantiveText pending National policy

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