Hegseth, Trump had no authority to order Anthropic to be blacklisted, judge says

Ars Technica
March 27, 2026
1 min read

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The Bottom Line

Federal judge blocks Trump administration's attempt to blacklist AI company Anthropic, ruling officials lacked legal authority for the designation.

AI Summary

A federal judge has blocked the Department of War's effort to blacklist Anthropic, ruling that officials lacked legal authority to designate the AI company as a supply-chain risk without considering less restrictive alternatives. US District Judge Rita Lin characterized the move as "classic First Amendment retaliation," noting that department records showed the designation stemmed from Anthropic's "hostile manner through the press" rather than evidence of genuine national security threats. Lin granted Anthropic's request for a preliminary injunction, preventing the blacklisting from taking effect while the case proceeds.

What's Being Done

US District Judge Rita Lin granted Anthropic's request for a preliminary injunction, preventing the blacklisting from taking effect while litigation continues.

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