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

Sen. Mazie K. Hirono

Compare
Total votes
1,054
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
1,735
bills & resolutions
Higher than 82% of chamber peers
Committees
15
assignments
1,735 bills and resolutions

Sponsored bills

Total
1,735
Primary
192
Co-sponsor
1,543
This page
1,735
matching current filters
Co-sponsor S 1546
In committee · United States Senate · Co-sponsor
Patent Eligibility Restoration Act of 2025

Maddy summaryThe Patent Eligibility Restoration Act of 2025 clarifies patent eligibility under U.S. law by eliminating judicial exceptions to Section 101 of the Patent Code. It makes most inventions eligible for patents unless they fall into specific excluded categories: mathematical formulas not tied to a practical invention, mental processes, unmodified human genes or natural materials, or purely economic/business processes (unless requiring machine use). This directly affects inventors, patent applicants, and courts by restoring clear eligibility rules after years of judicial confusion. The bill ensures business method patents remain eligible if they require practical machine implementation, while maintaining existing requirements for novelty and non-obviousness under Sections 102, 103, and 112.

In committee May 1, 2025 1 co-sponsor
Co-sponsor S 1553
In committee · United States Senate · Co-sponsor
PREVAIL Act

Maddy summaryThe PREVAIL Act (S 1553) aims to improve the U.S. patent system by making patent review processes more efficient and fair. It requires 3-member panels for patent reviews at the Patent Trial and Appeal Board, establishes a code of conduct for board members, and prevents repetitive patent challenges by creating a "single forum" for patent validity disputes. The bill also clarifies who counts as a "real party in interest" to stop strategic filings, changes the burden of proof in patent reviews to require "clear and convincing evidence" for unpatentability, and ensures patent fees are properly used for patent-related activities through a new Innovation Promotion Fund. These changes directly affect patent owners, patent challengers, and the U.S. Patent and Trademark Office (USPTO).

In committee May 1, 2025 1 co-sponsor
Co-sponsor SRES 190
In committee · United States Senate · Co-sponsor
A resolution seeking justice for the Japanese citizens abducted by North Korea.

Maddy summaryThis Senate resolution (SRES 190) calls on North Korea to address the abduction of Japanese citizens, a decades-long issue starting in the 1970s. It specifically requests North Korea to release any remaining abducted individuals, return remains and information about deceased victims, provide appropriate reparations, issue an apology, and permanently stop such abductions. The resolution urges the U.S. President to prioritize this matter in future diplomatic talks with North Korea. As a symbolic measure, it does not create new laws or impose sanctions but serves as a diplomatic statement supporting Japanese victims.

In committee Apr 30, 2025 1 co-sponsor
Co-sponsor S 1538
In committee · United States Senate · Co-sponsor
Better CARE for Animals Act of 2025

Maddy summaryThis bill strengthens enforcement of the Animal Welfare Act by giving the Attorney General new authority to sue violators and seek penalties up to $10,000 per day for ongoing violations. It requires dealers and exhibitors to hold valid licenses for animal sales or transport and allows seized animals to be taken by the government if they’re harmed by violations. Fines collected from violations will fund temporary care for animals during legal cases. The law directly affects animal dealers, exhibitors, and enforcement agencies (USDA and DOJ), clarifying that violations include breaches of related rules and regulations.

In committee Apr 30, 2025 1 co-sponsor
Primary S 1534
In committee · United States Senate · Lead sponsor
Women and Underrepresented Minorities in STEM Booster Act of 2025

Maddy summaryS 1534 establishes a National Science Foundation grant program to increase participation of women, underrepresented minorities (including Black, Hispanic, Native American, Asian subgroups, LGBTQ+ individuals), and people with disabilities in STEM fields. It authorizes $15 million annually (2026-2030) for competitive grants to fund specific activities like mentoring programs, internships, online workshops, K-12 outreach, and faculty recruitment. The program directly affects eligible educational institutions and organizations seeking to address documented disparities in STEM degree completion and workforce retention. Key provisions require grantees to target underrepresented groups identified through NSF data showing persistent gaps in enrollment, graduation, and career retention. The bill focuses on actionable support mechanisms rather than legislative changes.

In committee Apr 30, 2025 0 co-sponsors
Co-sponsor S 1531
In committee · United States Senate · Co-sponsor
Assault Weapons Ban of 2025

Assault Weapons Ban of 2025 This bill makes it a crime to knowingly import, sell, manufacture, transfer, or possess a semiautomatic assault weapon (SAW) or large capacity ammunition feeding device (LCAFD). The prohibition does not apply to a firearm that is (1) manually operated by bolt, pump, lever, or slide action, except for certain shotguns; (2) permanently inoperable; (3) an antique; (4) only capable of firing rimfire ammunition; or (5) a rifle or shotgun specifically identified by make and model. The bill also exempts from the prohibition the following, with respect to a SAW or LCAFD: importation, sale, manufacture, transfer, or possession related to certain law enforcement efforts, or authorized tests or experiments; importation, sale, transfer, or possession related to securing nuclear materials; and possession by a retired law enforcement officer. The bill permits continued possession, sale, or transfer of a grandfathered SAW, which must be securely stored. A licensed gun dealer must conduct a background check prior to the sale or transfer of a grandfathered SAW between private parties. The bill permits continued possession of, but prohibits sale or transfer of, a grandfathered LCAFD. Newly manufactured LCAFDs must display serial number identification. Newly manufactured SAWs and LCAFDs must display the date of manufacture. The bill also allows a state or local government to use Edward Byrne Memorial Justice Assistance Grant Program funds to compensate individuals who surrender a SAW or LCAFD under a buy-back program.

In committee Apr 30, 2025 1 co-sponsor
Co-sponsor S 1503
In committee · United States Senate · Co-sponsor
Equality Act

Maddy summaryThe Equality Act (S 1503) amends existing civil rights laws to explicitly prohibit discrimination based on sexual orientation and gender identity in employment, housing, public accommodations, credit, and jury service. It expands the definition of "sex" in federal civil rights laws to include sexual orientation and gender identity, clarifying that discrimination based on these factors is prohibited under current law. The bill directly affects individuals, businesses, government entities, and service providers by requiring compliance with these expanded anti-discrimination protections. It does not create new rights but makes clear that existing protections against sex discrimination already cover sexual orientation and gender identity, as affirmed by the Supreme Court in Bostock v. Clayton County. The legislation aims to provide consistent nationwide protections against discrimination that LGBTQ+ people have historically faced in key areas of public life.

In committee Apr 29, 2025 1 co-sponsor
Co-sponsor S 1506
In committee · United States Senate · Co-sponsor
Medicare for All Act

Maddy summaryThe Medicare for All Act would establish a government-run health insurance program providing comprehensive coverage to all U.S. residents, replacing current private insurance, Medicare, and Medicaid. The program would cover all medically necessary services including hospital care, prescription drugs, dental, vision, mental health, and reproductive care without patient cost-sharing (except for limited prescription drug cost-sharing under specific conditions). It would prohibit private insurers from selling duplicate coverage and require employers to stop providing duplicate benefits, while allowing supplemental coverage for additional services not included in the core benefits package. The bill includes a transition period with immediate coverage for children and a gradual phase-in for full implementation, with benefits first available for most individuals in 2027. The program would be funded through a new Medicare for All Trust Fund, consolidating current health care program revenues.

In committee Apr 29, 2025 1 co-sponsor
Co-sponsor S 1515
In committee · United States Senate · Co-sponsor
Affordable Housing Credit Improvement Act of 2025

Maddy summaryThe Affordable Housing Credit Improvement Act of 2025 updates the Low-Income Housing Tax Credit program to increase affordability and accessibility for low-income households. It raises state allocation amounts through revised per capita calculations, modifies income eligibility rules to better serve extremely low-income households, and adds protections for domestic violence victims in housing. The bill expands "difficult development areas" to include rural areas and Indian lands, and changes the program's name from "Low-Income Housing Credit" to "Affordable Housing Credit" to better reflect its purpose. These changes aim to make affordable housing more accessible while improving transparency and accountability in the program's implementation.

In committee Apr 29, 2025 1 co-sponsor
Primary SRES 169
In committee · United States Senate · Lead sponsor
A resolution expressing support for the staff of public, school, academic, and special libraries in the United States and the essential services those libraries provide to communities, recognizing the need for funding commensurate with the broad scope of social service and community supports provided by libraries, preserving the right of all citizens of the United States to freely access information and resources in their communities, supporting a strong union voice for library workers, and defending the civil rights of library staff.

Maddy summaryS.Res. 169 is a Senate resolution expressing support for library staff and the essential services provided by public, school, academic, and special libraries across the United States. It recognizes libraries as critical community resources - offering internet access, job training, crisis support, and safe spaces - while highlighting challenges like funding shortages, book bans, and threats to staff safety. The resolution calls for full federal, state, and local funding to sustain library services, reaffirms citizens' right to free information access, and supports library workers' rights to unionize and speak out against censorship or intimidation. It specifically addresses recent pressures, including the elimination of the Institute of Museum and Library Services and rising book-banning efforts, to protect libraries' role in democracy and community well-being.

In committee Apr 10, 2025 0 co-sponsors
Showing 471 to 480 of 1,735 bills
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