Judge sides with Anthropic to temporarily block the Pentagon’s ban

The Verge / 3/27/2026

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Key Points

  • A judge granted Anthropic a preliminary injunction that temporarily blocks the Pentagon from enforcing its ban/blacklisting while the lawsuit proceeds.
  • The court cited the Pentagon’s rationale for blacklisting Anthropic as a “supply chain risk” tied to Anthropic’s “hostile manner through the press,” ruling that this amounts to an improper punishment for public scrutiny.
  • The judge’s order will take effect in seven days, giving Anthropic short-term legal relief from procurement restrictions.
  • The decision centers on First Amendment concerns and whether government contracting actions were retaliatory or lawful during an ongoing dispute over defense-related AI.
  • The ruling adds momentum to the broader legal and regulatory fight over how AI companies can engage publicly with government contracting and oversight.

After Anthropic's weeks-long standoff with the Pentagon, the company won one milestone: A judge granted Anthropic a preliminary injunction in its lawsuit, which sought to reverse its government blacklisting while the judicial process plays out.

"The Department of War's records show that it designated Anthropic as a supply chain risk because of its 'hostile manner through the press,'" Judge Rita F. Lin, a district judge in the northern district of California, wrote in the order, which will go into effect in seven days. "Punishing Anthropic for bringing public scrutiny to the government's contracting position is classic illegal First Amendme …

Read the full story at The Verge.