Anthropic vs. Pentagon AI Blacklist

U.S. District Judge Rita Lin granted a preliminary injunction pausing the Pentagon’s novel “supply‑chain risk” designation of Anthropic and temporarily blocking enforcement of President Trump’s directive that federal agencies cease using Anthropic’s Claude model (the stay is paused for seven days to allow an appeal), effectively restoring the pre‑Feb. 26 status quo while the broader lawsuits proceed. Lin called the government’s actions “troubling” and likely arbitrary or punitive — questioning whether the Pentagon could simply stop using Claude rather than broadly blacklisting Anthropic and raising First Amendment and procurement‑law concerns — while the government defends the designation as rooted in national‑security fears of future sabotage and argues public statements by leaders have no legal effect.