Federal judge rules Trump administration blacklisting of Anthropic was unlawful
U.S. District Judge Rita F. Lin ruled that the Defense Department violated the First and Fifth Amendments when designating Anthropic a supply chain risk over a disputed $200 million contract.
The District Court ruling
U.S. District Judge Rita F. Lin of the Northern District of California ruled on 27 August that the Trump administration acted unlawfully by blacklisting artificial intelligence company Anthropic PBC. In a 59-page decision delivered in San Francisco, the court granted relief to the company and ordered the administration to lift its ban on Anthropic technology across federal agencies. Lin concluded that the Department of Defense engaged in unlawful retaliation in violation of the First Amendment after the firm spoke out about acceptable uses for its artificial intelligence systems. The court found that federal officials punished the company for constitutionally protected expressive activities. Lin also determined that the government denied Anthropic the pre-deprivation administrative process required under the Fifth Amendment.
The undisputed record shows that the challenged actions constituted unlawful retaliation in violation of the First Amendment, and that Anthropic was denied the pre-deprivation process required under the Fifth Amendment.
Statutory findings and contract terms
The ruling established that Defense Secretary Pete Hegseth violated the governing statutory scheme when designating the Claude chatbot maker a security threat. Lin concluded there was no material dispute that the Pentagon's blacklisting decision was arbitrary and capricious. The conflict began at the start of the year during procurement talks over a $200 million contract to supply artificial intelligence software for classified military systems. Anthropic insisted on contractual terms that would prohibit its models from being deployed for the mass surveillance of Americans or in autonomous lethal weapons systems. The Pentagon refused to accept those boundaries, asserting that a private corporation cannot establish policy for the U.S. government.
- Anthropic and the Pentagon clash over surveillance terms on a $200 million contract
- Anthropic files two federal lawsuits after Defense Secretary Pete Hegseth issues blacklisting
- Judge Rita F. Lin rules the Pentagon designation unlawful under the First and Fifth Amendments
Scope of the supply-chain blacklist
When negotiations failed to produce an agreement, Hegseth designated Anthropic a formal supply chain risk. The administrative tool had previously been utilized by federal authorities against foreign companies deemed threats to national security. The blacklisting barred all contractors and commercial suppliers working with the military from doing business with the San Francisco-based artificial intelligence lab. The measure effectively isolated Anthropic from both direct federal procurement and broader commercial defense supply chains. The legal fight developed while Anthropic moved toward what may become the largest initial public offering on record.
Parallel litigation and government response
The San Francisco ruling resolves the first of two lawsuits Anthropic filed in March in response to the Pentagon's blacklisting measures. A second lawsuit concerning the dispute remains active in the U.S. Court of Appeals for the District of Columbia Circuit. The Trump administration did not immediately respond to requests for comment regarding the ruling, though federal officials may appeal Lin's decision or await the appellate court ruling before acting. Anthropic confirmed the ruling in a statement, noting that it was pleased the supply chain designation was ruled unlawful and reiterating its interest in government work.
We remain focused on working productively with the government to harness A.I. for our national security so all Americans benefit from this technology.
