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Sen. Kyrsten Sinema

Senator for Arizona

pronounced KEER-stun // SEH-nuh-muh

Sinema is the senior senator from Arizona and is an Independent caucusing with the Democrats (2022-), previously a Democrat (2019-2022). She has served since Jan 3, 2019. Sinema is next up for reelection in 2024 and serves until Jan 3, 2025. She is 47 years old.

She was previously the representative for Arizona’s 9th congressional district as a Democrat from 2013 to 2018.

Photo of Sen. Kyrsten Sinema [I-AZ]


Legislative Metrics

Read our 2022 Report Card for Sinema.

Ideology–Leadership Chart

Sinema 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 Sinema has sponsored and cosponsored from Jan 3, 2019 to Oct 3, 2023. See full analysis methodology.

Committee Membership

Kyrsten Sinema sits on the following committees:

Enacted Legislation

Sinema was the primary sponsor of 15 bills that were enacted. The most recent include:

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Does 15 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

Sinema sponsors bills primarily in these issue areas:

Armed Forces and National Security (27%) Government Operations and Politics (23%) Public Lands and Natural Resources (10%) Environmental Protection (10%) Immigration (9%) Finance and Financial Sector (9%) Native Americans (9%) Economics and Public Finance (4%)

Recently Introduced Bills

Sinema recently introduced the following legislation:

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Most legislation has no activity after being introduced.

Voting Record

Key Votes

Sinema voted No

Passed 218/208 on Jun 18, 2015.

This vote made H.R. 2146 the vehicle for passage of Trade Promotion Authority (TPA) for the Trans-Pacific Partnership (TPP) trade deal currently being negotiated. H.R. …

Sinema voted Aye

Passed 247/178 on Jun 16, 2015.

The Intelligence Authorization Act for Fiscal Year 2016 (IAA), H.R. 2596, was passed by the House on June 16. The IAA would authorize funding for …

Sinema voted Yea

Passed 338/88 on May 13, 2015.

The USA Freedom Act (H.R. 2048, Pub.L. 114–23) is a U.S. law enacted on June 2, 2015 that restored in modified form several provisions of …

Sinema voted Yea

Sinema 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 …

Sinema voted Aye

Missed Votes

From Jan 2019 to Sep 2023, Sinema missed 97 of 1,910 roll call votes, which is 5.1%. This is much 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.

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Primary Sources

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