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Sen. Bill Cassidy

Senator for Louisiana

pronounced bil // KA-sih-dee

Cassidy is the senior senator from Louisiana and is a Republican. He has served since Jan 6, 2015. Cassidy is next up for reelection in 2026 and serves until Jan 3, 2027. He is 66 years old.

He was previously the representative for Louisiana’s 6th congressional district as a Republican from 2009 to 2014.

Photo of Sen. Bill Cassidy [R-LA]

Analysis

Legislative Metrics

Read our 2022 Report Card for Cassidy.

Ideology–Leadership Chart

Cassidy is shown as a purple triangle ▲ in our ideology-leadership chart below. Each dot is a member of the Senate positioned according to our ideology score (left to right) and our leadership score (leaders are toward the top).

The chart is based on the bills Cassidy has sponsored and cosponsored from Jan 3, 2019 to Sep 30, 2023. See full analysis methodology.

Committee Membership

Bill Cassidy sits on the following committees:

Enacted Legislation

Cassidy was the primary sponsor of 29 bills that were enacted. The most recent include:

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Does 29 not sound like a lot? Very few bills are ever enacted — most legislators sponsor only a handful that are signed into law. But there are other legislative activities that we don’t track that are also important, including offering amendments, committee work and oversight of the other branches, and constituent services.

We consider a bill enacted if one of the following is true: a) it is enacted itself, b) it has a companion bill in the other chamber (as identified by Congress) which was enacted, or c) if at least about half of its provisions were incorporated into bills that were enacted (as determined by an automated text analysis, applicable beginning with bills in the 110th Congress).

Bills Sponsored

Issue Areas

Cassidy sponsors bills primarily in these issue areas:

Health (35%) Taxation (15%) Education (13%) Armed Forces and National Security (10%) Energy (8%) Commerce (7%) Crime and Law Enforcement (7%) International Affairs (6%)

Recently Introduced Bills

Cassidy recently introduced the following legislation:

View All » | View Cosponsors »

Most legislation has no activity after being introduced.

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Voting Record

Key Votes

Cassidy voted Yea

Cassidy voted Yea

Passed 219/206 on Dec 11, 2014.
This bill became the vehicle for passage of the Consolidated and Further Continuing Appropriations Act, 2015 [pdf], which was approved by the House on December …

Cassidy voted Aye

Cassidy voted Nay

Cassidy voted Aye

Cassidy voted Aye

Passed 304/117 on Jun 23, 2011.
The Leahy–Smith America Invents Act (AIA) is a United States federal statute that was passed by Congress and was signed into law by President Barack …

Missed Votes

From Jan 2015 to Sep 2023, Cassidy missed 91 of 3,011 roll call votes, which is 3.0%. This is worse than the median of 2.4% among the lifetime records of senators currently serving. The chart below reports missed votes over time.

We don’t track why legislators miss votes, but it’s often due to medical absenses, major life events, and running for higher office.

Show the numbers...

Primary Sources

The information on this page is originally sourced from a variety of materials, including: