King County Councilmember Teresa Mosqueda announced on Monday, Nov. 24, 2025 that she will seek re-election in 2026 to represent District 8, highlighting her first-term work on housing stability, public health, worker protections and community investments across the district.
Mosqueda was first elected to the King County Council District 8 seat in 2023.
District 8 includes Burien, White Center, West Seattle, South Park, the Duwamish Valley, Tukwila and Vashon-Maury Island.
This election – set for Tuesday, Nov. 3, 2026 – is being held in 2026 because of a charter amendment approved by voters in 2022, which moves elections for certain county offices from odd-numbered years to even-numbered years beginning in 2026.
Mosqueda enters the race with endorsements from Gov. Bob Ferguson, Attorney General Nick Brown, U.S. Rep. Pramila Jayapal and more than 100 regional leaders, according to her campaign. She also has early support from almost a dozen labor unions.
In a statement, Mosqueda said she ran for the council “to improve the opportunity for working families to be healthy, housed, and resilient,” adding that she is “only getting started.” She cited accomplishments including expanding affordable housing opportunities, boosting behavioral health supports, strengthening workers’ rights and securing investments across every part of the district. 
Since joining the council in 2023, Mosqueda has championed housing and anti-displacement measures, including funding to stabilize rent for thousands of families and programs to expand supportive housing and first-time homeownership. She has led major health investments, such as advancing youth mental health services, overdose prevention strategies, and new funding for public health clinics and behavioral health workers. She also helped mandate gun-violence prevention programs in areas such as White Center. 
Jayapal praised Mosqueda as “exactly the fighter we need in this moment,” citing her record on labor protections and progressive revenue policy.
Ferguson said Mosqueda has “led the way for policy that supports our essential workers, women, and communities of color.” 
SEIU 925 President Tricia Schroeder said Mosqueda “never stops standing with” working families. 
Mosqueda’s campaign noted her role in passing child care legislation, expanding youth development and violence-prevention programs, strengthening labor protections for gig workers and service workers, and advancing small business policies.  She previously led Seattle’s JumpStart payroll tax effort, credited with generating more than 200 million dollars annually for housing, climate and economic resilience initiatives. 
“District 8 is my home,” Mosqueda said, adding that she will continue working so residents “have the housing, health, transit, and opportunity we deserve.” 
A campaign launch event is scheduled for Thursday, Jan. 8 in White Center.
