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Composite score - coming soon

Official portrait of Mazie K. Hirono

Mazie K. Hirono

U.S. Senator · Hawaii

  • Democrat
  • Since 2007
  • Tenure: 4+ terms

Refreshed 19 h ago

As of 2026-10-19 · Methodology 2026.10.1

Contact info

  • Capitol office

    109 Hart Senate Office Building Washington DC 20510

    202-224-6361

  • District offices

    Honolulu

View all contact info

Evidence & sources

  • U.S. Senate roll-call votes

    Votes and participation (senate.gov)

  • Congress.gov bill records

    Sponsored and enacted bills

  • congress-legislators

    Terms, committees, offices

Stale, last successful update 2026-10-23

View all sources

Explore this record

Scorecard

Voting Record

45.2/ 100

Ranked 36 of 47 in the Senate minority

How this score is calculated:

  • Roll calls cast

    911 of 914 while seated (99.7%)

    94th percentile in cohort · 30 % weight

  • Substantive bills sponsored

    40 of 40 sponsored · 40.6 points

    24th percentile in cohort · 70 % weight

  • Bills enacted

    0 sponsored · 2 cosponsored

    0 passed a chamber · 0 reported · 40 introduced

Promise Adherence

0 of 5 promises scored

Collecting data - coming soon

How this score is calculated:

  • Reviewed promises

    0 scored of 5 needed

    0 promises from 0 sources this term

  • Days in office this term

    668 days (180 needed)

  • Promise capture coverage

    0 of 3 source kinds settled

Impact History (coming soon)

0 of 10 matched votes

Collecting data - coming soon

How this score is calculated:

  • Matched votes

    0 of 10 needed

  • District opinion cells

    0 snapshots frozen

    Needs ≥ 25 verified respondents and a lean ≥ 0.15

Approval Rating

0 of 1 public poll on record

Collecting data - coming soon

How this score is calculated:

  • Public polls averaged

    0 of 1 needed

  • Polls on file for this officeholder

    None recorded yet

  • Most recent fieldwork

    No poll on record

Offices held

OfficeSeatPartyFromToCongress
U.S. SenatorHI, statewideDemocrat2025-01-032031-01-03119
U.S. SenatorHI, statewideDemocrat2019-01-032025-01-03116
U.S. SenatorHI, statewideDemocrat2013-01-032019-01-03113
U.S. RepresentativeHI-2Democrat2011-01-052013-01-03112
U.S. RepresentativeHI-2Democrat2009-01-062011-01-03111
U.S. RepresentativeHI-2Democrat2007-01-042009-01-03110
This score is a guide, not a verdict.