Mazie K. Hirono

DemocratState D+13119th Congress

Typical swing score53#32 of 100 senators across tracked bills

Contact Mazie K. Hirono’s office

Official D.C. office details from the congress-legislators dataset

Call office 202-224-6361 Send a message

Washington, D.C. office

109 Hart Senate Office Building Washington DC 20510

hirono.senate.gov

Model

v3defaultv2

Directional: count only breaks toward the other party Why do scores change?

Signals to watch

What in this member’s state, record and ideology could move them, and in which direction. Their score is the same on every bill they haven’t committed to, so these are the things to watch.

Could pull them toward Republicans · 2 signals

Strong
Backs 47 Republican-led tracked billsSponsor or active cosponsor of 47 of the 2090 tracked bills that were introduced by Republicans: S. 199, S. 339, S. 410, S. 419, S. 475 and 42 more.
- Sponsored or cosponsored: S. 199 A bill to amend the Internal Revenue Code of 1986 to provide special rules for the taxation of certain residents of Taiwan with income from sources within the United States.
- Sponsored or cosponsored: S. 339 Nancy Gardner Sewell Medicare Multi-Cancer Early Detection Screening Coverage Act
- Sponsored or cosponsored: S. 410 Love Lives On Act of 2025
Show all 10
- Sponsored or cosponsored: S. 419 Reauthorizing Support and Treatment for Officers in Crisis Act of 2025
- Sponsored or cosponsored:

Term and election

From the congress-legislators dataset

Current term: January 3, 2025 – January 3, 2031
Senate class: Class 1
Seniority: Junior senator
Next election: November 5, 2030
Years in office: 19.8 years

Committees

Seats on a bill’s committee of referral add a in swing-v3

Senate Committee on Armed Services
Minority · 5th in seniority
- Subcommittee on Seapower
- Subcommittee on Readiness and Management SupportRanking Member
- Subcommittee on Personnel
Senate Committee on Energy and Natural Resources
Minority · 4th in seniority
- Subcommittee on Energy

Voting ideology

first dimension, from Voteview

D median

R median

Hirono

← More liberal (−1)More conservative (+1) →

Their score of -0.510 is 0.15 to the left of the Senate Democratic median (-0.356).

Advocacy scorecards

Their rating vs. the Senate Democratic average

119th Congress0
Senate Democratic average: 0 (n=47)

Swing score by bill

swing-v2 · a bill marks a member as committed to it

Showing 751–800 of 2038 tracked bills, best swing first

Swing score for Mazie K. Hirono on each tracked bill
Bill	Their role		Swing score ·
S. 1829STOP CSAM Act of 2025Summary on Congress.gov	No position yet	No recorded vote	53	Middle
S. 1872Critical Infrastructure Manufacturing Feasibility ActSummary on Congress.gov