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Sen. Mazie Hirono

Senator for Hawaii

pronounced MAY-zee // hih-ROH-noh

Hirono is the junior senator from Hawaii and is a Democrat. She has served since Jan 3, 2013. Hirono is next up for reelection in 2024 and serves until Jan 3, 2025. She is 75 years old.

She was previously the representative for Hawaii’s 2nd congressional district as a Democrat from 2007 to 2012.

Photo of Sen. Mazie Hirono [D-HI]

Analysis

Legislative Metrics

Read our 2022 Report Card for Hirono.

Ideology–Leadership Chart

Hirono 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 Hirono has sponsored and cosponsored from Jan 3, 2019 to Sep 30, 2023. See full analysis methodology.

Committee Membership

Mazie Hirono sits on the following committees:

Enacted Legislation

Hirono was the primary sponsor of 18 bills that were enacted. The most recent include:

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Does 18 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

Hirono sponsors bills primarily in these issue areas:

Immigration (22%) Health (21%) Armed Forces and National Security (15%) Education (10%) Civil Rights and Liberties, Minority Issues (10%) Public Lands and Natural Resources (9%) Commerce (9%) Agriculture and Food (6%)

Recently Introduced Bills

Hirono recently introduced the following legislation:

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Most legislation has no activity after being introduced.

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Voting Record

Key Votes

Hirono voted Nay

Hirono voted Aye

Hirono voted No

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 2013 to Sep 2023, Hirono missed 41 of 3,668 roll call votes, which is 1.1%. This is better 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: