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New injunction blocks Trump plan
The single most important new development is that a California federal judge granted Anthropic a preliminary injunction blocking both the Trump directive to stop using Claude and the Pentagon’s supply chain risk designation, delaying the ban for seven days to allow appeal.
“Judge temporarily blocks Trump administration's Anthropic ban A federal judge in San Francisco ordered a preliminary injunction against the Pentagon on Thursday that temporarily puts on ice its potentially-crippling decision to label Anthropic a 'supply chain risk.'”
Lin described the measures as potentially punitive and not clearly tied to national security interests, stating that the broad measures did not appear to be directed at the government’s stated security goals.
The ruling keeps Anthropic in the government workflow for now while the merits of the case are weighed, instead of allowing the ban to proceed unimpeded.
Judge’s reasoning and specifics
The ruling zeroes in on the administration’s behavior, noting the actions 'appear designed to punish Anthropic' rather than respond to a narrowly tailored security concern.
The court quoted the broader statutory framework by highlighting that the measures lack a clear legal basis to brand an American company as a potential adversary for disagreeing with the government, a point echoed by multiple outlets.
The decision also suggested a practical alternative: if the concern is the integrity of the chain of command, the Department of War could simply stop using Claude rather than punish a vendor for speaking out.
Free-speech and governance stakes
Non-Western and Western outlets frame the dispute as a test of corporate speech rights in a defense contracting context.
“"Punishing Anthropic for bringing public scrutiny to the government's contracting position is classic illegal First Amendment retaliation."”
Xinhuanet labeled the measures as 'illegal First Amendment retaliation' for Anthropic expressing concerns about Pentagon deployment.
RFI described the sanctions as likely violating freedom of expression, a view echoed by Mediapart and Le Monde, which describe the move as unconstitutional retaliation.
Next steps and practical implications
With the seven-day pause in place, Anthropic remains in play, and the Pentagon can still pivot to other AI providers if the injunction does not become permanent.
The court’s decision signals that future sanctions in this space may be subject to closer judicial scrutiny regarding First Amendment rights and the proportionality of the government’s measures.
Open questions remain about what happens if the injunction is extended or upheld, including whether Claude can be used under guardrails while the case proceeds.