Amicus – Arizona + 24 States Amicus – Law Enforcement Groups and Firearms Rights Groups Amicus – Professors of 2A Law, Cato Institute, John Locke Foundation, Center to Keep and Bear Arms, Independence Institute Amicus – San Diego County Gun Owners Political Action Committee et al Amicus – The Madison Society Foundation Inc + The DC Project Petitioner – Cert Petition Petitioner – Cert Reply Brief Respondent – Brief Opposing Cert Previous Next