Anthropic wins preliminary injunction in DOD fight as judge cites 'First Amendment retaliation'

A federal judge granted Anthropic a preliminary injunction, blocking the Trump administration's ban on federal agencies using the company's Claude AI models and its Pentagon blacklisting as a supply chain risk (a designation claiming use of a company's technology threatens national security). The judge ruled the administration's actions constituted First Amendment retaliation for Anthropic publicly disagreeing with the government's contracting decisions, though a final verdict in the case could take months.