Federal judge rules Trump administration blacklist of Anthropic unlawful
On Aug 27, a US federal judge in California ruled in Anthropic's favor, finding the government's blacklist of the company on national security grounds unconstitutional retaliation.
On August 27, the US District Court for the Northern District of California issued summary judgment in Anthropic's lawsuit against the Pentagon, granting Anthropic's motion in part. The court held that the Trump administration's addition of Anthropic to a supply-chain blacklist on national-security grounds for refusing to abandon restrictions on lethal AI weapons constituted unlawful retaliation in violation of the First Amendment and lacked due process.
In July 2025, the Pentagon had awarded Anthropic a $200 million contract to develop military AI but subsequently removed Anthropic from the supply chain after Anthropic refused to relax restrictions on lethal AI weapons. Anthropic sued, arguing the government's actions violated the First Amendment and Due Process Clause.
The ruling is seen as a key precedent for AI companies negotiating usage boundaries with the federal government, with downstream implications for compliance postures of OpenAI, Google DeepMind, and xAI on defense AI projects.