Anthropic Federal Lawsuit Challenging Supply Chain Risk Designation

The Filing

On March 9, 2026, Anthropic PBC filed a federal lawsuit in the Northern District of California and a parallel petition for review in the D.C. Circuit Court of Appeals challenging the Department of Defense’s February 27 supply chain risk designation. The complaint alleges that the designation constitutes government retaliation for protected speech — specifically, Anthropic’s publicly stated positions on autonomous weapons and military AI safety — in violation of the First Amendment.

The filing argues that FASARA’s supply chain risk authorities were designed to address threats from foreign-controlled technology companies and have never been applied to a US-headquartered company. Anthropic contends that the designation lacks any factual basis in supply chain security and instead punishes the company for exercising its constitutional right to articulate conditions under which its technology should and should not be deployed in military contexts.

Constitutional Claims

The complaint raises three primary constitutional arguments. First, that the designation is viewpoint-based retaliation: Anthropic was designated not because its products pose a security risk, but because it publicly disagreed with the administration’s position on military AI deployment. Second, that FASARA’s procedures — which permit designation without prior notice, hearing, or adversarial process — violate Fifth Amendment due process when applied to a domestic company based on policy disagreements rather than security findings. Third, that the designation’s practical effect is to coerce Anthropic into abandoning its published safety commitments as a condition of market access, constituting an unconstitutional condition on commercial activity.

Request for Emergency Relief

Anthropic simultaneously filed a motion for a temporary restraining order and preliminary injunction seeking to halt the implementation of the designation pending resolution of the case. The motion argues irreparable harm: the designation is already causing contract terminations, customer loss, and reputational damage that cannot be remedied by monetary damages after the fact. The motion notes that several allied governments have paused or suspended their own Anthropic procurement decisions pending the outcome of the US designation, amplifying the commercial harm beyond the domestic market.

Broader Significance

Legal analysts have noted that the case raises novel questions at the intersection of national security deference, First Amendment corporate speech protections, and the limits of supply chain security authorities. The government’s traditional argument — that courts should defer to executive branch national security determinations — faces an unusual challenge here because the designation memo itself contains no classified security finding, relying instead on Anthropic’s public statements as the basis for the action.