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Mazie K. Hirono

Democrat · HI · U.S. Senate

Bio

Mazie Keiko Hirono is an American lawyer and politician serving since 2013 as the junior United States senator from Hawaii. A member of the Democratic Party, Hirono previously served as a member of the United States House of Representatives for Hawaii's 2nd congressional district from 2007 to 2013. She has been the dean of Hawaii's congressional delegations since 2013, when Senator Daniel Akaka retired. Hirono also served as a member of the Hawaii House of Representatives from 1981 to 1994 and as Hawaii's tenth lieutenant governor from 1994 to 2002. She was the Democratic nominee for governor of Hawaii in 2002, but lost to Republican Linda Lingle.

Full bio on Wikipedia →

Record of service

In office
19.6 years
Chambers
House 6y, Senate 13.6y
First took office
2007 (6 terms)
Seniority
27 of 100 by time served
Age
78
Senate class
1 · junior senator
District offices
  • Honolulu, HI · 808-522-8970

Service history, offices and identifiers from unitedstates/congress-legislators (public domain). Years served sum each term rather than subtracting the first start date, so a break in service is not counted as time in office.

Reported net worth

2018
$3.2M
2019
$3.5M
2020
$4.5M
2021
$5.2M
2022
$5.2M
2023
$7.6M
2024
$6.9M
2025
$7.6M
Most recent filing (2025)
Assets
$5.1M$11.1M
Liabilities
$350k$750k
Net worth
$4.3M$10.8M
Since 2018
+$4.3M

From annual financial disclosures, which report every asset and debt as a bracket — so these are ranges, and the figure shown is their midpoint. A primary residence is not a reportable asset while its mortgage is a reportable debt, which pushes some members negative. How this is calculated →

Overall lean (DW-NOMINATE)

LeftCenterRight

Issue profile

FiscalHealthImmig.GunsAbortionEnviron.CrimeDefenseEconomyForeignCivil R.Educ.GovtJudicial
Taxes & Fiscal
D+0.47
Healthcare
D+0.85
Immigration & Border
D+0.67
Guns
D+0.48
Abortion & Reproductive Rights
D+0.86
Environment & Energy
D+0.85
Crime & Policing
D+0.90
Defense & Veterans
D+0.18
Economy & Labor
D+0.87
Foreign Policy & Trade
D+0.67
Civil Rights & Social
D+0.58
Education
D+0.74
Government & Democracy
D+0.70
Judicial & Executive Nominations
D+0.84

Each issue runs left right, scored from how the member voted on bills tagged to that issue (−1…+1). Issues with too few votes are blank. Overall lean uses DW-NOMINATE.

How they score against the parties

Mazie K. Hirono's voting record compared with each party's national platform, issue by issue — the same similarity score used across the site.

On the political map

Mazie K. Hirono (the large ringed dot) among every current member of Congress and the party platforms.

Socially conservativeSocially progressiveEconomic leftEconomic rightHirono

Each small dot is a current member (Dem · Rep); the larger dots are party platforms — click one for its closest members. Economic axis: taxes, healthcare, labor, energy. Social axis: abortion, guns, immigration, civil rights, crime.

Do you vote like Hirono?

Answer a few questions on the issues and see which members of Congress — and which party — actually line up with you.

Take the 2-minute quiz

Caucuses & committees

Where Hironosits in Congress's own organization — each group's lean is computed from its members' voting records. Explore them all on the caucuses and committees pages.

Caucuses

Most and least aligned members

Treating Hirono's 14 issue scores as a vector, cosine similarity measures whether two voting records point the same way (+100%) or in opposite directions (−100%) — the colleagues whose records align most and least with theirs.

Recent notable votes

YEA
21st Century ROAD to Housing Act
2026-06-18 · Cloture Motion Agreed to · Economy & Labor, Government & Democracy, Environment & Energy
NAY
George Holding, of North Carolina, to be United States Director of the European Bank for Reconstruction and Development
2026-06-18 · Nomination Confirmed · Foreign Policy & Trade, Judicial & Executive Nominations
NAY
Michelle Steel, of California, to be Ambassador to the Republic of Korea
2026-06-17 · Cloture Motion Agreed to · Foreign Policy & Trade, Judicial & Executive Nominations
NAY
Michelle Steel, of California, to be Ambassador to the Republic of Korea
2026-06-17 · Nomination Confirmed · Foreign Policy & Trade, Judicial & Executive Nominations
NAY
George Holding, of North Carolina, to be United States Director of the European Bank for Reconstruction and Development
2026-06-17 · Cloture Motion Agreed to · Foreign Policy & Trade, Judicial & Executive Nominations
NAY
Justin D. Smith, of Missouri, to be United States Circuit Judge for the Eighth Circuit
2026-06-15 · Nomination Confirmed · Judicial & Executive Nominations
NAY
Brock Dahl, of Maryland, to be Legal Adviser of the Department of State
2026-06-11 · Nomination Confirmed · Foreign Policy & Trade, Judicial & Executive Nominations
NAY
Justin D. Smith, of Missouri, to be United States Circuit Judge for the Eighth Circuit
2026-06-11 · Cloture Motion Agreed to · Judicial & Executive Nominations
NAY
Anthony J. Powell, of Kansas, to be United States District Judge for the District of Kansas
2026-06-10 · Cloture Motion Agreed to · Judicial & Executive Nominations
NAY
Anthony J. Powell, of Kansas, to be United States District Judge for the District of Kansas
2026-06-10 · Nomination Confirmed · Judicial & Executive Nominations
NAY
Brock Dahl, of Maryland, to be Legal Adviser of the Department of State
2026-06-10 · Cloture Motion Agreed to · Foreign Policy & Trade, Judicial & Executive Nominations
NAY
Anthony W. Mattivi, of Kansas, to be United States District Judge for the District of Kansas
2026-06-09 · Nomination Confirmed · Judicial & Executive Nominations

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