Summary: Federal Second Amendment constitutional challenge to (1) the City of Denver’s ban on so-called “assault weapons” and (2) Denver’s and the State of Colorado’s bans on magazines that can hold more than 15 rounds.

Plaintiffs: Ray Elliott, Trevor Alley, Michael Vitco, Firearms Policy Coalition, Inc., and Colorado State Shooting Association

Defendants: City and County of Denver, Colorado Governor Jared Polis, Colorado Attorney General Phillip J. Weiser, Colorado Bureau of Investigation Director Armando Saldate III, Colorado State Patrol Chief Colonel Matthew C. Packard, and City and County of Denver District Attorney John Walsh

Counsel: David H. Thompson, Peter A. Patterson, and William v. Bergstrom

Docket: D. CO case no. 1:26-cv-02948 | CourtListener Docket

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Key Events & Filings:

• 2026-6-30: Complaint

News Releases:

• 2026-6-30: FPC, CSSA Launch Colorado Lawsuit as Supreme Court Takes Up “Assault Weapon” Case