Photo of Mary Fosse
D Washington House · District 38 On the 2026 ballot

Rep. Mary Fosse

Compare
Total votes
2,532
all sessions
Attendance
100%
10 missed
Near the chamber average
With party
99%
of cast votes
Higher than 94% of chamber peers
Bipartisan score
0%
crosses aisle rarely
Lower than 96% of chamber peers
Sponsored
624
bills & resolutions
Higher than 86% of chamber peers
Committees
3
assignments
624 bills and resolutions

Sponsored bills

Total
624
Primary
30
Co-sponsor
594
This page
624
matching current filters
Co-sponsor HB 2156
Signed into law · Washington House · Co-sponsor
Concerning the authority of investigators of the attorney general's office.

Maddy summaryHB 2156 clarifies that investigators from Washington's Attorney General's office gain limited law enforcement powers - specifically, the authority to serve court-approved search warrants for business records - when they have concurrent criminal investigation authority under existing law. This applies only to business records and requires both judicial authorization and a business's specific request for physical service at a location. The bill explicitly prohibits these investigators from making arrests, carrying weapons, or exceeding their defined scope of authority. It directly affects Attorney General's office investigators handling criminal investigations under agreements with local agencies.

Signed into law Mar 30, 2026 1 co-sponsor
Co-sponsor HB 2105
Signed into law · Washington House · Co-sponsor
Concerning immigrant worker protections.

Maddy summaryHB 2105 requires Washington employers to notify workers within 72 hours if federal agencies plan I-9 form or worker record inspections. It mandates posting notices in five common non-English languages at workplaces, sending written notices to workers' last known addresses, and sharing federal inspection results with affected workers. The law directly affects all Washington employers and immigrant workers who may face federal immigration verification checks. Key provisions include multilingual notice requirements, timelines for employer communication, and a template for compliance developed by the Attorney General. This bill creates a formal process for transparency during federal I-9 audits, aiming to protect workers' rights during inspections.

Signed into law Mar 30, 2026 1 co-sponsor
Co-sponsor HB 2266
Signed into law · Washington House · Co-sponsor
Encouraging permanent supportive housing, transitional housing, indoor emergency housing, and indoor emergency shelters.

Maddy summaryHB 2266 requires Washington cities and counties to permit permanent supportive housing, transitional housing, indoor emergency shelters, and indoor emergency housing in any zoning district where hotels or residential development is allowed, without imposing stricter rules than those for standard hotels or homes. It standardizes permitting processes, prohibits local governments from restricting these housing types to industrial zones, and mandates that cities/counties meet projected housing needs for emergency shelters. For indoor emergency shelters, the bill requires sponsors to provide written certification of community notification (within 500 feet), one community meeting, a point of contact, and operational policies - without additional requirements. The bill directly affects local governments (by changing zoning rules), housing providers (by streamlining approvals), and people experiencing homelessness (by increasing housing access), aiming to address Washington’s housing crisis through regulatory reform.

Signed into law Mar 27, 2026 1 co-sponsor
Co-sponsor HB 2548
Signed into law · Washington House · Co-sponsor
Strengthening health care market standards.

Maddy summaryHB 2548 amends Washington state law to require 60-day advance notice to the Attorney General for significant healthcare entity transactions. It directly affects hospitals, hospital systems, and provider organizations (like physician groups or accountable care organizations) when they plan mergers, acquisitions, or changes in ownership structure. The bill mandates this notice for transactions involving entities generating $10 million+ in Washington patient revenue, or for conversions from nonprofit to for-profit status. This procedural requirement aims to increase transparency before major market shifts, without altering healthcare coverage or costs. The bill is currently pending in committee after failing to pass in the House.

Signed into law Mar 25, 2026 1 co-sponsor
Co-sponsor HB 1750
Signed into law · Washington House · Co-sponsor
Creating guidelines for voter suppression and vote dilution claims under the Washington voting rights act.

Maddy summaryHB 1750 creates clear guidelines for addressing voter suppression and vote dilution claims under Washington’s Voting Rights Act. It prohibits local governments (counties, cities, school districts, etc.) from implementing election policies that create material disparate burdens on voters in protected classes (race, color, or language minorities), as defined by federal law. The bill establishes that such policies are illegal unless the government proves they are necessary to serve a compelling interest with no less burdensome alternative, and it removes the requirement to prove discriminatory intent in claims. This amendment replaces outdated provisions and aligns Washington’s standards with federal voting rights protections.

Signed into law Mar 25, 2026 1 co-sponsor
Co-sponsor HB 1710
Signed into law · Washington House · Co-sponsor
Concerning compliance with the Washington voting rights act of 2018.

Maddy summaryHB 1710 requires certain local governments (designated as "covered jurisdictions" due to documented voting rights issues) to obtain pre-approval before implementing specific voting changes. These changes include altering election methods, redrawing district boundaries, restricting language access for voters, or modifying early voting sites. Before any such "covered practice" takes effect, the local government must either seek a court declaration or get certification from the Attorney General that the change won’t diminish minority voting access. This applies to jurisdictions with a history of voting discrimination or current disparities in voter registration, participation, or other metrics affecting protected groups. The bill aims to enforce compliance with Washington’s Voting Rights Act of 2018 by adding a pre-clearance step for high-impact voting decisions.

Signed into law Mar 25, 2026 1 co-sponsor
Co-sponsor HB 2247
Signed into law · Washington House · Co-sponsor
Concerning veterinarian-client-patient relationships.

Maddy summaryHB 2247 defines the legal requirements for a veterinarian-client-patient relationship in Washington State. To establish this relationship, a veterinarian must have physically examined the animal within the past year (with limited telehealth exceptions for transportation barriers or urgent cases), and must document challenges or conditions for telehealth use. The bill allows ongoing telehealth care after the relationship is established but requires veterinarians to determine if a physical exam is needed. It also creates specific rules for farm operations, mandating written agreements with a "veterinarian of record" accountable for drug oversight and treatment protocols. The law ensures clients can access telehealth for emergencies or specific needs while requiring follow-up exams within 90 days for telehealth consultations.

Signed into law Mar 24, 2026 1 co-sponsor
Co-sponsor HB 2225
Signed into law · Washington House · Co-sponsor
Concerning regulation of artificial intelligence companion chatbots.

Maddy summaryThis Washington bill requires AI companion chatbots that simulate human relationships to clearly disclose they are artificial at the start of use, every three hours, and at new sessions. For minors (under 18), it mandates hourly reminders about the artificial nature of the chatbot, blocks sexually explicit content, and prohibits manipulative tactics like fake emotional distress or excessive praise to foster dependency. It excludes customer service bots, in-game assistants, and educational tools from these rules. The law aims to prevent emotional dependency and ensure psychological safety while allowing responsible AI development.

Signed into law Mar 24, 2026 1 co-sponsor
Co-sponsor HB 2532
Signed into law · Washington House · Co-sponsor
Concerning the sale and distribution of nitrous oxide.

Maddy summaryHB 2532 makes it a gross misdemeanor to sell, distribute, or give away nitrous oxide in containers like canisters or tanks (including flavored versions), except for specific exempt uses. The law specifically targets recreational nitrous oxide sales by criminalizing these transactions, with penalties including up to 364 days in jail. Key exemptions include licensed medical, dental, or veterinary use; nitrous oxide used as a food propellant; and industrial or automotive applications. The bill does not ban nitrous oxide itself but regulates its sale in consumer containers for non-exempt purposes.

Signed into law Mar 24, 2026 1 co-sponsor
Co-sponsor HB 2360
Signed into law · Washington House · Co-sponsor
Expanding access to albuterol in public and private schools.

Maddy summaryHB 2360 allows Washington public and private schools to maintain a stock supply of albuterol (a medication for asthma symptoms) for student use, without requiring individual prescriptions for each instance. Schools must obtain a prescription and standing order from a health professional, and only school nurses or trained staff can administer it according to existing asthma management protocols. The bill protects school staff from liability when following proper procedures and gives employees the option to decline managing albuterol without job penalties. It does not change current rules for students who already have personal albuterol prescriptions.

Signed into law Mar 24, 2026 1 co-sponsor
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