Federal judge voids Pentagon’s blacklist of Anthropic, finds retaliation for criticism

# What happened A federal judge in California has set aside the Pentagon's label of Anthropic as a national security supply-chain risk. US District Judge Rita Lin issued a 59-page order that found the designation was punishment for Anthropic's public criticism of the Trump administration rather than a security assessment. The ruling requires the government to withdraw the directives it issued against the company.

# Why the government acted and how the case started The dispute began on February 27, when President Trump instructed agencies to stop using Anthropic's technology. Defense Secretary Pete Hegseth designated Anthropic a supply-chain risk the same day. The trigger for the split was Anthropic's refusal to remove two contractual usage restrictions on its Claude model: a prohibition on mass surveillance of Americans, and a ban on use in fully autonomous weapons systems.

Anthropic sued in March, arguing the designation was unlawful retaliation for its policy positions. A preliminary injunction had already been granted on First Amendment grounds earlier in the case.

# Judge Lin's findings In a written order resolving cross-motions for summary judgment, Lin found constitutional violations. She said the government's invocation of national security could not be used to punish a company for criticizing administration policy. The order cited both First Amendment and Fifth Amendment due process violations.

Lin described government conduct as aimed at making an example of Anthropic for what she characterized as the company's "arrogance." She also flagged an inconsistency: the military continued efforts to work with Anthropic even while calling the company a security risk.

At the July 30 hearing, Lin had expressed skepticism about the government's record and noted that new evidence did not justify the actions taken against Anthropic.

# Government response and next steps

Anthropic issued a statement saying it remains focused on working productively with the government to apply its technology for national security purposes.

# Parallel litigation

# What this means for buyers and vendors The ruling removes the immediate legal barrier created by the Pentagon's designation, but it does not end related litigation. The government's appeal could alter the outcome. Buyers who paused or altered procurement plans because of the blacklisting will need to track the appellate timeline and any new orders. Vendors should note that courts are willing to scrutinize government labels tied to political speech or contract terms.

# Bottom line Judge Rita Lin concluded that the Pentagon's move was retaliation for Anthropic's public positions, not a defensible security determination. Her order requires withdrawal of the directives against Anthropic, but the Justice Department's planned appeal and a separate court decision in DC mean the controversy is not fully resolved.