U.S. attorney Steven Donziger, who has represented indigenous and other Ecuadorian Amazon communities in the historic environmental case against Chevron Corporation for over 25 years, is petitioning the Inter-American Commission on Human Rights, claiming that by embracing Chevron’s retaliatory litigation and “demonization” campaign against him, U.S. judicial bodies and other public authorities have inflicted and enabled severe violations of his rights to due process, freedom of expression and association, privacy, and property under applicable international human rights instruments. This Briefing Memorandum serves to apprise the public of the content of the petition, the disturbing facts of the persecution suffered by Mr. Donziger, and the larger context of the threat that such attacks pose to human rights and environmental advocacy more broadly.