Sierra Club has endorsed local candidates for the November 2026 election. These candidates offer Boulder and Boulder County exceptional knowledge and experience in environmental and civic leadership. Each of the endorsed candidates supports the goals and interests of the Sierra Club, notably housing and transportation policies that will reduce carbon and improve and protect our natural resources while addressing social equity, zero waste goals, local and regional sustainability, and community resilience in the face of climate change.
Boulder County 2026 Candidate Endorsements
Boulder Mayor
Aaron Brockett
Boulder City Council
Jill Grano
Rachel Rose Isaacson
Tina Marquis
Ryan Schuchard
Tara Winer
Regional Transportation District Board
Jack Rosenthal
County Commissioner
Ashley Stolzmann
The Sierra Club Colorado's tax exemption status - 501(c)(4) - allows us to make endorsements for candidates and ballot measures.