Anthropic sues the Trump administration to block Pentagon's supply chain risk designation

Anthropic filed lawsuits in federal court in California and the D.C. Circuit Court of Appeals on March 9, 2026, seeking to reverse the Pentagon's designation of the company as a supply chain risk and President Trump's order to cease government use of Claude. The dispute centers on Anthropic's refusal to remove guardrails preventing its AI from being used for autonomous weapons and mass surveillance, while the Pentagon demanded Claude be available for all lawful uses. Defense Secretary Pete Hegseth formally issued the designation, which historically has been used against foreign adversaries, marking the first known use against a U.S. company.