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ARTICLE · 29 APRIL 2026

BCLP Files Amicus Brief In Support Of Anthropic's First Amendment Rights

Bryan Cave Leighton Paisner
Bryan Cave Leighton Paisner
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Bryan Cave Leighton Paisner

Bryan Cave Leighton Paisner

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A law firm team filed an amicus brief supporting Anthropic's First Amendment challenge against federal government designations that branded the AI company a supply chain risk and ordered cessation of all federal and contractor use of its technology. The brief argues these actions violate constitutional protections, threaten market competition, and harm American taxpayers by denying a U.S. AI company the scale needed to compete globally.

United StatesGovernment, Public Sector

Amicus Brief for Taxpayers Protection Alliance Foundation (TPAF) supports Anthropic’s challenge to administration's supply chain risk designation.

Partner David B. Schwartz, Appellate Practice Group Co-Leader Barbara Smith-Tyson, and Associate Jessica Limbaugh drafted and filed an amicus brief on behalf of the Taxpayers Protection Alliance Foundation (TPAF) in support of protecting Anthropic’s core First Amendment-protected expression.

In its amicus brief, TPAF argues that the D.C. Circuit should grant Anthropic’s petition for review because the government’s actions violate the First Amendment, threaten the free market, ignore the plain meaning of the relevant statute, and lack an intelligible principle, all of which will harm American taxpayers. In particular, the TPAF amicus brief points out that the government’s actions deny Anthropic the necessary scale to grow and compete with other global competitors, despite the import of AI to the U.S. economy and U.S. taxpayers.

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