Federal Judge Temporarily Blocks the Pentagon From Branding AI Firm Anthropic a Supply Chain Risk

U.S. District Judge Rita Lin on Thursday said she was also blocking enforcement of a President Donald Trump’s social media directive on Anthropic.

Federal Judge Temporarily Blocks the Pentagon From Branding AI Firm Anthropic a Supply Chain Risk
Photo of Secretary of Defense Pete Hegseth, left, and Under Secretary of Defense for Research and Engineering Emil Michael, right, on July 16, 2025, by Julia Demaree Nikhinson/AP

SAN FRANCISCO, March 27, 2026 (AP) — A federal judge has ruled in favor of artificial intelligence company Anthropic in temporarily blocking the Pentagon from labeling the company as a supply chain risk.

U.S. District Judge Rita Lin on Thursday said she was also blocking enforcement of President Donald Trump's social media directive ordering all federal agencies to stop using Anthropic and its chatbot Claude.

Lin said the “broad punitive measures” taken against the AI company by the Trump administration and Defense Secretary Pete Hegseth appeared arbitrary, capricious and could "cripple Anthropic,” particularly Hegseth's use of a rare military authority that's previously been directed at foreign adversaries.

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