Photo of Mazie K. Hirono
D United States Senate · Hawaii

Sen. Mazie K. Hirono

Compare
Total votes
1,044
all sessions
Attendance
100%
of floor votes
Higher than 92% of chamber peers
With party
97%
of cast votes
Near the chamber average
Bipartisan score
2%
crosses aisle rarely
Near the chamber average
Sponsored
1,717
bills & resolutions
Higher than 82% of chamber peers
Committees
15
assignments
1,717 bills and resolutions

Sponsored bills

Total
1,717
Primary
188
Co-sponsor
1,529
This page
1,717
matching current filters
Co-sponsor S 3332
In committee · United States Senate · Co-sponsor
More Homes on the Market Act

Maddy summaryThis bill increases the tax exclusion for capital gains when selling a primary residence. It doubles the exclusion amount from $250,000 (for single filers) to $500,000 and from $500,000 (for married couples) to $1,000,000. The bill also adds an inflation adjustment for amounts after 2025, tying future increases to the cost-of-living adjustment. It directly affects homeowners who sell their primary residence and would otherwise owe tax on profits exceeding the previous limits. The changes apply to sales after the bill's enactment date.

In committee Dec 3, 2025 1 co-sponsor
Co-sponsor S 3326
In committee · United States Senate · Co-sponsor
Temporary Immigration Judge Integrity Act

Maddy summaryThis bill establishes rules for temporary immigration judges who handle cases while permanent judges are appointed. It allows the Attorney General to appoint former immigration judges, Board members, or attorneys with 10+ years of immigration law experience for up to 6-month terms (renewable for a maximum of 4 terms, or 24 months total). Temporary judges must complete 8 weeks of initial training plus weekly 1-day sessions unless recently retired (within 2 years), and their work is overseen by the Chief Immigration Judge. The law emphasizes that temporary judges should not replace permanent judges and requires them to have deep expertise in U.S. immigration law.

In committee Dec 3, 2025 1 co-sponsor
Co-sponsor S 3319
In committee · United States Senate · Co-sponsor
Workforce of the Future Act of 2025

Maddy summaryThe Workforce of the Future Act of 2025 requires federal agencies to study AI's impact on jobs through reports due within 6 months, 1 year, and 3 years of enactment, focusing on data needs, affected industries, and vulnerable demographics. It authorizes $160 million in Department of Education grants to expand emerging and advanced technology education in schools, with specific emphasis on making these programs accessible to underrepresented groups including minorities, girls, and students from low-income families. The bill also allocates $90 million in Department of Labor grants to provide training for workers most impacted by AI in industries where AI is projected to significantly affect job opportunities. Grantees must report on program participation and outcomes, disaggregated by race, ethnicity, gender, and socioeconomic status, and demonstrate how programs will be sustained after funding ends. The legislation emphasizes collaboration between schools, industry, and labor organizations to develop curricula and training aligned with future workforce needs.

In committee Dec 3, 2025 1 co-sponsor
Co-sponsor S 3308
In committee · United States Senate · Co-sponsor
Artificial Intelligence Civil Rights Act of 2025

Maddy summaryThe Artificial Intelligence Civil Rights Act of 2025 regulates AI systems that make decisions affecting people's lives, such as employment, housing, healthcare, credit, and education. It requires developers and deployers to conduct pre-deployment evaluations and annual impact assessments by independent auditors to prevent discrimination and harm. The law mandates clear consumer disclosures about AI use, provides the right to human alternatives for AI-driven decisions, and creates enforcement mechanisms through the Federal Trade Commission and state attorneys general. It also includes whistleblower protections for employees reporting violations and requires transparency about how AI systems operate.

In committee Dec 2, 2025 1 co-sponsor
Co-sponsor S 3307
In committee · United States Senate · Co-sponsor
Inspector General Access Act of 2025

Maddy summaryThis bill reorganizes procedural rules for Inspector General (IG) investigations within the Department of Justice (DOJ). It removes specific language that previously restricted IG access to certain allegations involving DOJ personnel, streamlining the investigation process. The key change eliminates an exception clause in existing law, allowing IGs to investigate all DOJ personnel allegations without that prior limitation. This affects how DOJ investigations are conducted but does not create new policies or change substantive rights. (Procedural bill; summary focuses on specific legal reorganization.)

In committee Dec 2, 2025 1 co-sponsor
Co-sponsor S 2042
In committee · United States Senate · Co-sponsor
Roadless Area Conservation Act of 2025

Maddy summaryThe Roadless Area Conservation Act of 2025 would maintain existing protections for designated roadless areas within the National Forest System by prohibiting new road construction, reconstruction, or logging in those areas. It directly affects National Forest lands managed by the U.S. Department of Agriculture’s Forest Service, where the Roadless Rule already restricts such activities. The bill’s key mechanism requires the Secretary of Agriculture to enforce these current restrictions without adding new limitations. This policy change preserves existing protections for watersheds, wildlife habitats, recreation opportunities, and culturally significant sites within these roadless areas.

In committee Dec 2, 2025 1 co-sponsor
Co-sponsor S 3285
In committee · United States Senate · Co-sponsor
ADOPT Act of 2025

Maddy summaryThe ADOPT Act of 2025 creates federal criminal penalties for unlicensed individuals or entities providing adoption intermediary services (like connecting birth parents with adoptive parents for profit) or placing paid "adoption advertisements" that solicit parties for placement. It prohibits payments exceeding $2,500 to birth parents before consulting a licensed agency or attorney, aiming to prevent exploitation and the commodification of children in private domestic adoptions. The law directly affects unlicensed intermediaries and commercial facilitators, while exempting licensed adoption agencies, attorneys, 501(c)(3) organizations under contract with them, and intercountry adoption programs. Violations carry fines up to $50,000 or 5 years in prison for individuals, and $100,000 for organizations per offense.

In committee Dec 1, 2025 1 co-sponsor
Co-sponsor S 2392
Signed into law · United States Senate · Co-sponsor
Veterans’ Compensation Cost-of-Living Adjustment Act of 2025

Maddy summaryThis bill increases disability compensation for veterans with service-connected disabilities and dependency and indemnity compensation for surviving spouses and children of deceased veterans, effective December 1, 2025. The increases will match the percentage rise in Social Security benefits for that year, as determined under the Social Security Act. It directly affects veterans receiving disability payments and surviving family members eligible for survivor benefits under current law. The adjustment ensures these benefits keep pace with inflation, as required by the Social Security cost-of-living adjustment formula.

Signed into law Nov 25, 2025 1 co-sponsor
Co-sponsor S 260
Signed into law · United States Senate · Co-sponsor
Bottles and Breastfeeding Equipment Screening Enhancement Act

Maddy summaryThis bill requires Transportation Security Administration (TSA) and private security personnel to handle breast milk, baby formula, and related cooling items (like ice packs) with proper hygiene during airport security screenings. It mandates that TSA issue updated hygiene guidelines within 90 days (and every five years) after enactment, developed with maternal health organizations, to minimize contamination risks. The bill also requires a Department of Homeland Security Inspector General audit within one year to assess compliance and evaluate how screening technologies impact the handling of these items. The policy directly affects traveling parents and caregivers transporting infant essentials.

Signed into law Nov 25, 2025 1 co-sponsor
Primary SRES 511
In committee · United States Senate · Lead sponsor
A resolution supporting the goals and principles of Transgender Day of Remembrance by recognizing the epidemic of violence toward transgender people and memorializing the lives lost this year.

Maddy summaryThis resolution (SRES 511) is a symbolic Senate measure supporting Transgender Day of Remembrance. It recognizes the epidemic of violence against transgender people in the U.S., specifically memorializing 27 transgender or gender nonconforming individuals killed between October 2024 and September 2025. The resolution emphasizes the disproportionate impact of violence on transgender women of color and calls for addressing this crisis, though it does not create new laws or policies. It directly affects the transgender community by affirming their lives and safety as a national priority.

In committee Nov 20, 2025 0 co-sponsors
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