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Sen. Bill Cassidy

Senator for Louisiana

pronounced bil // KA-si-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 2020 and serves until Jan 3, 2021 unless re-elected.

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]


Legislative Metrics

Read our 2019 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 liberal–conservative 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 6, 2015 to Aug 11, 2020. See full analysis methodology.

Ratings from Advocacy Organizations

Committee Membership

Bill Cassidy sits on the following committees:

Enacted Legislation

Cassidy was the primary sponsor of 11 bills that were enacted. The most recent include:

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Does 11 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 (36%) Armed Forces and National Security (16%) Energy (12%) Taxation (11%) Crime and Law Enforcement (8%) Education (7%) Government Operations and Politics (6%) Public Lands and Natural Resources (5%)

Recent Bills

Some of Cassidy’s most recently sponsored bills include...

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Voting Record

Key Votes

Cassidy voted Nay

Motion Agreed to 89/4 on Jul 13, 2016.

This bill became the vehicle for passage of the reauthorization of the Federal Aviation Administration (FAA) for fiscal year 2017. The bill was introduced as ...

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 ...

Cassidy voted Nay

Passed 319/60 on Jun 15, 2009.

Missed Votes

From Jan 2015 to Aug 2020, Cassidy missed 56 of 1,686 roll call votes, which is 3.3%. This is worse than the median of 1.7% 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 and major life events.

Show the numbers...

Primary Sources

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