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Judge rules Anthropic blacklisting illegal

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The gist

A federal judge ruled the Pentagon's blacklisting of Anthropic illegal, violating First Amendment rights.
The ruling blocks enforcement and overturns the supply chain risk designation, affecting AI-military relations.

Background

Anthropic, the maker of Claude AI models, was designated a 'supply chain risk' by the Pentagon in February 2026 after negotiations over safety guardrails fell apart. The company sued in March, arguing the designation was retaliation for its public stance on AI safety, including opposition to autonomous weapons and domestic surveillance. Judge Rita Lin ruled the designation was 'illegal and baseless,' violating the First and Fifth Amendments.

How it unfolded

  1. Feb 2026The Trump administration designated Anthropic a 'supply chain risk,' barring it from working with the U.S. government.
  2. Mar 9, 2026Anthropic sued the government, alleging violations of free speech and due process.
  3. Mar 2026Judge Rita Lin paused the designation while the case proceeded.
  4. Aug 27, 2026Judge Lin ruled the blacklisting illegal, blocking enforcement and overturning the designation.

Who’s saying what

Official
The Pentagon did not immediately respond to a request for comment.
Company
Anthropic welcomed the ruling, saying it remains focused on working productively with the government.
Judge
Judge Lin wrote that 'the empty invocation of national security is not a blank check to punish and retaliate against government critics.'

Sources

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