Photo of Catherine Cortez Masto
D United States Senate · Nevada

Sen. Catherine Cortez Masto

Compare
Total votes
1,044
all sessions
Attendance
98%
23 missed
Near the chamber average
With party
93%
of cast votes
Lower than 97% of chamber peers
Bipartisan score
4%
crosses aisle rarely
Higher than 95% of chamber peers
Sponsored
1,612
bills & resolutions
Higher than 77% of chamber peers
Committees
13
assignments
1,612 bills and resolutions

Sponsored bills

Total
1,612
Primary
336
Co-sponsor
1,276
This page
1,612
matching current filters
Primary SRES 701
Passed · United States Senate · Lead sponsor
A resolution designating the week of April 20 through 26, 2026, as "National Dark Sky Week".

Maddy summaryThis resolution designates the week of April 20 through 26, 2026, as National Dark Sky Week to highlight the importance of preserving the natural night sky. It encourages federal agencies, communities, and educators to promote awareness of dark sky preservation and its benefits for recreation, science, and wildlife. The bill also calls on individuals and organizations to adopt responsible lighting practices that reduce light pollution.

Passed Apr 29, 2026 0 co-sponsors
Co-sponsor S 4437
In committee · United States Senate · Co-sponsor
Puppy Protection Act of 2026

Maddy summaryThe Puppy Protection Act of 2026 amends the Animal Welfare Act to impose stricter housing and care standards on dog dealers. It requires dealers to provide dogs with solid flooring, sufficient indoor space based on size, and temperature control between 45 and 85 degrees Fahrenheit. The bill also mandates daily nutritious food, unrestricted outdoor exercise for most dogs over 12 weeks, and at least 30 minutes of daily social interaction with humans. Additionally, it establishes specific rules for breeding, such as limiting the number of litters a female dog can produce and requiring health screenings before breeding. These new requirements must be implemented through final regulations issued by the Secretary within 18 months of the law's enactment.

In committee Apr 29, 2026 1 co-sponsor
Co-sponsor S 4436
In committee · United States Senate · Co-sponsor
Protecting Human Rights and Public Health in Foreign Assistance Act

Maddy summaryThis bill, known as the Protecting Human Rights and Public Health in Foreign Assistance Act, directs federal agencies to ignore three specific final rules issued by the Department of State. It explicitly prohibits any government department from implementing, enforcing, or creating new policies similar to these existing rules, effectively treating them as if they never existed. The targeted regulations concern protecting life, combating discriminatory equity ideology, and addressing gender ideology within foreign aid programs. By nullifying these rules, the legislation removes the current administrative requirements related to these topics from U.S. foreign assistance activities.

In committee Apr 29, 2026 1 co-sponsor
Co-sponsor SJRES 99
In committee · United States Senate · Co-sponsor
A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by U.S. Citizenship and Immigration Services relating to "Removal of the Automatic Extension of Employment Authorization Documents".

Maddy summaryThis joint resolution (SJRES 99) seeks congressional disapproval of a specific U.S. Citizenship and Immigration Services (USCIS) rule that removed automatic extensions for Employment Authorization Documents (EADs). The rule, published in the Federal Register on October 30, 2025, ended the prior practice of automatically extending work permits for certain immigrants while their renewal applications were pending. If approved, this resolution would block the rule from taking effect, restoring the automatic extension process for EAD holders. The policy change directly affects non-citizens in the U.S. who hold EADs and are waiting for renewal processing, preventing potential gaps in work authorization.

In committee Apr 29, 2026 1 co-sponsor
Co-sponsor S 749
In committee · United States Senate · Co-sponsor
Justice for ALS Veterans Act of 2025

Maddy summaryThis bill extends increased dependency and indemnity compensation to surviving spouses of veterans who die from amyotrophic lateral sclerosis (ALS). It directly affects the spouses of veterans whose death was caused by ALS, specifically those who died on or after October 1, 2022. The key provision amends a law to treat veterans who died from ALS as if they had the disease for the required period before death, removing a prior time requirement for compensation eligibility. This change ensures surviving spouses qualify for the same benefits previously available only to veterans with longer ALS diagnoses.

In committee Apr 29, 2026 1 co-sponsor
Co-sponsor SRES 697
Passed · United States Senate · Co-sponsor
A resolution welcoming Their Majesties King Charles III and Queen Camilla of the United Kingdom to the United States on the occasion of His Majesty's address to a joint meeting of Congress, and recognizing the historic global significance of the United States-United Kingdom relationship.

Maddy summaryThis Senate resolution formally welcomes King Charles III and Queen Camilla to the United States for a state visit where the King will address a joint session of Congress. The document highlights the long-standing diplomatic and security partnership between the two nations, noting shared values and cooperation on issues like defense and technology. It also marks the occasion as the first time a British monarch has addressed Congress since 1991, coinciding with the 250th anniversary of American independence.

Passed Apr 28, 2026 1 co-sponsor
Co-sponsor S 4416
In committee · United States Senate · Co-sponsor
PHS ACCESS Act

Maddy summaryThe PHS ACCESS Act allows the Secretary of Health and Human Services to send Public Health Service Commissioned Corps officers to work with Urban Indian organizations to support health department functions. It also changes how these officers are appointed by giving the Secretary more flexibility to grant service credit based on specific needs rather than requiring it automatically. Under the new rules, the Secretary must create clear criteria that prioritize appointees serving in rural areas, regions with workforce shortages, locations with limited healthcare access, or those working with Indian tribes and Urban Indian organizations. Additionally, these criteria will be regularly reviewed to ensure they match current workforce demands.

In committee Apr 28, 2026 1 co-sponsor
Primary S 4406
In committee · United States Senate · Lead sponsor
Next-Generation Geothermal Research and Development Act

Maddy summaryThis bill establishes a comprehensive research and development framework to advance next-generation geothermal technologies, specifically targeting enhanced geothermal systems, closed-loop systems, and supercritical geothermal energy. It directs the Department of Energy to create a new research program that awards milestone-based grants for deep drilling projects and establishes a center of excellence to coordinate efforts across universities, national laboratories, and private partners. Key provisions include updating federal data repositories to standardize subsurface information, commissioning deep exploration boreholes to map heat and rock properties, and funding innovations in drilling equipment, power generation efficiency, and water usage. The legislation also mandates periodic reports on the commercialization barriers of these technologies and authorizes $5 million annually through 2031 to support these initiatives.

In committee Apr 28, 2026 0 co-sponsors
Co-sponsor S 4389
In committee · United States Senate · Co-sponsor
HELP Separated Children Act

Maddy summaryThe HELP Separated Children Act directs the Department of Homeland Security to identify parents of U.S. children during immigration enforcement actions and ensures they can make phone calls to arrange care for their children. It requires officials to notify child welfare agencies only when a parent cannot arrange care for their child or when there is an imminent risk of harm to the child. The bill also mandates that detained parents be allowed regular contact with their children, participate in family court proceedings, and be considered for release if it serves the child's best interests. Additionally, the legislation requires federal employees involved in these actions to receive training on minimizing trauma to children and establishes a system for collecting data on how the law is implemented.

In committee Apr 27, 2026 1 co-sponsor
Co-sponsor S 4369
In committee · United States Senate · Co-sponsor
Absentee and Mail Voter Protection Act

Maddy summaryThis bill, known as the Absentee and Mail Voter Protection Act, aims to overturn a specific executive order by repealing it and prohibiting the use of federal funds to implement similar directives in the future. It directly affects the United States Postal Service, various federal agencies, and state election officials by restricting their ability to regulate mail-in ballots or create national citizenship lists for voting purposes. Key provisions ban federal agencies from sharing voter registration data, compel the Postal Service to continue delivering state-issued mail ballots without interference, and forbid the use of taxpayer money to enforce rules that would require states to adopt specific citizenship verification methods. The legislation seeks to preserve the current system where states manage their own election administration while the Postal Service delivers ballots, citing historical precedents and the high volume of mail-in voting used by Americans.

In committee Apr 22, 2026 1 co-sponsor
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