Judge Blocks Trump Administration Ban on Anthropic AI

U.S. District Judge Rita Lin ruled Thursday that the Trump administration illegally retaliated against Anthropic by designating the AI company as a national security supply-chain risk. The court found the government used this designation as a pretext to punish the company for its refusal to allow its Claude AI models to be used for mass surveillance of Americans or the operation of fully autonomous lethal weapons systems.

The dispute began in February 2026 over a $200 million contract with the United States Department of War. When Anthropic refused to remove restrictive terms regarding battlefield management and missile defense, citing its own moral values, President Donald Trump ordered federal agencies to stop using the technology. Defense Secretary Pete Hegseth subsequently labeled the firm a supply-chain risk, a designation typically reserved for foreign entities, and barred defense contractors from doing business with the company.

Judge Lin vacated the boycott and blacklisting orders, stating that national security claims cannot serve as a "blank check" to punish government critics. The ruling noted that the administration violated the First Amendment and due process, intending to make a public example of the company for its "arrogance." While the government previously argued that Anthropic posed a security risk due to backdoor access, it later conceded the technology was no riskier than other AI systems.

Anthropic welcomed the decision and expressed a desire to work productively with the government. However, the ruling does not require the Department of War to resume business with the firm, and a separate legal challenge regarding civilian government contracts remains pending in a Washington, D.C. appeals court.