Mazie K. Hirono
U.S. Senator from Hawaii since 2013. Next on the ballot in 2030.
U.S. Senator from HawaiiBorn 1947
- In office
- 13 yrs
- Since 2013
- Bills became law
- 0
- 62 sponsored, 119th Congress
- Votes missed
- 0.4%
- Chamber median 2.1%
- With party
- 99%
- On votes splitting the parties
- Last margin
- +32.7
- Won 2024
- Next election
- 2030
- Nov 5, 2030
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Nov 7, 2026, 3:00 PM ET
Committees
119th Congress.
- Senate Committee on Armed ServicesPersonnelReadiness and Management Support · Ranking MemberSeapower
- Senate Committee on Energy and Natural ResourcesEnergyNational ParksPublic Lands, Forests, and Mining
- Senate Committee on Small Business and Entrepreneurship
- Senate Committee on the JudiciaryFederal Courts, Oversight, Agency Action, and Federal RightsBorder Security and ImmigrationIntellectual Propertythe Constitution
- Senate Committee on Veterans' Affairs
Source: congress-legislators committeesUpdated Nov 7, 2026, 3:00 PM ET
Legislation
No bills in this list for the 119th Congress.
Source: Congress.gov billsUpdated Nov 6, 2026, 3:27 PM ET
Voting record
Where Hirono sits in the U.S. Senate
Hirono is closer to the center than 20% of the chamber's Democrats.
Closest: Brian Schatz, Alex Padilla, Charles E. Schumer
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 5:06 PM ET
With Hirono’s party
- Votes with the chamber's Democrats99%
- Cosponsorships of the other party's bills18%
Black tick: the average of Democrats in the U.S. Senate.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Hirono’s vote, each party’s majority, and the result. An orange vote differs from most Democrats.
| Date | Bill | Hirono | Dem. majority | Rep. majority | Result |
|---|---|---|---|---|---|
| Jun 5, 2026 | S 2: Secure America Act | No | No | Yes | Passed 52–47 |
| Apr 16, 2026 | HJRES 140: Providing for congressional disapproval under chapter 8 of title 5, United States Code,… | No | No | Yes | Passed 50–49 |
| Feb 12, 2026 | HJRES 142: Disapproving the action of the District of Columbia Council in approving the D.C.… | No | No | Yes | Passed 49–47 |
| Jan 30, 2026 | HR 7148: Consolidated Appropriations Act, 2026 | Yes | No | Yes | Passed 71–29 |
| Dec 4, 2025 | HJRES 131: Providing for congressional disapproval under chapter 8 of title 5, United States Code,… | No | No | Yes | Passed 49–45 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Hirono was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Elections
Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.
| Year | Race | Result | Margin |
|---|---|---|---|
| 2024 | U.S. Senate, Hawaii | Won | D+32.7 |
| 2018 | U.S. Senate, Hawaii | Won | D+42.3 |
| 2012 | U.S. Senate, Hawaii | Won | D+25.2 |
| 2010 | U.S. House, HI-2 | Won | D+46.9 |
| 2008 | U.S. House, HI-2 | Won | D+55.7 |
| 2006 | U.S. House, HI-2 | Won | D+22.1 |
| 2002 | Governor of Hawaii | Lost | R+4.6 |
Source: 99chambers results archive
Seats Hirono has held
- U.S. Senate, Hawaii · 2013–2031
- U.S. House, HI-2 · 2007–2013
Source: 99chambers results archive
Who Hirono has run against
- Bob McDermott (R) · 2024 general, won
- Ron Curtis (R) · 2018 general, won
- Linda Lingle (R) · 2012 general, won
- John W. Willoughby (R) · 2010 general, won
- Roger B. Evans (R) · 2008 general, won
- Bob Hogue (R) · 2006 general, won
Source: 99chambers results archive
How we know Hirono
One person, matched across every source we use.
- Bioguide H001042
- FEC H6HI02251
- Wikidata Q16476
- Ballotpedia Mazie K. Hirono
- Vote Smart 1677
- GovTrack 412200
- OpenSecrets N00028139
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Nov 7, 2026, 3:00 PM ET