Despite Anthropic winning a ruling against the DOD in California, it must still convince the DC Circuit Court of Appeals to lift the supply chain risk label

Politico 2026-03-29 Brendan Bordelon

Context & Ripple Effects

Anthropic had already said it would challenge any such designation in court, and its March lawsuit framed the dispute as involving free-speech and due-process concerns. The California result creates an immediate legal foothold, but the separate DC Circuit proceeding remains the key unresolved venue for the designation itself.

The case makes federal AI procurement a live test of how far an agency can restrict a model provider through supply-chain authorities. Later coverage underscores that the appellate path—not merely the California injunction—will determine whether that constraint remains operative.

First-order effects

Anthropic gains preliminary judicial support against the DOD in California, while still facing an unresolved appellate fight over the supply-chain-risk label.
DOD contractors using Claude for DOD work remain exposed to uncertainty because Anthropic had said the designation would apply to contractors' use of Claude on that work.

Second-order effects

Federal contractors may delay or narrow Claude deployments pending clarity from the DC Circuit, raising the value of alternative tools that present fewer procurement-risk complications.
The split procedural picture forces both Anthropic and the DOD to devote resources to parallel litigation rather than settling the procurement question through a single ruling.

Third-order effects

If agencies can sustain supply-chain designations against AI providers, government access to frontier models could increasingly turn on administrative risk classifications as well as product capability.
The outcome could help define the judicial limits on using supply-chain authorities for AI services, shaping how model labs establish legitimacy in sovereign procurement markets.

The trend: AI labs are becoming subject to a more consequential procurement-governance layer in which court-tested supply-chain designations can determine access to government workloads.

Discussion

@uswremichael @uswremichael on x
Oh @amir from Dis-Information, the Supply Chain Risk designation under 41 USC 4713 is in full force and effect. The USC 3252 preliminary injunction is on hold for 7 days while on appeal. At this moment, @AnthropicAI is a Supply Chain Risk under both sections of the statute.
@charliebull0ck Charlie Bullock on x
This is an important and currently overlooked point. The Pentagon declared Anthropic a supply chain risk under two different statutes, and Anthropic had to file two different parallel lawsuits challenging each designation separately. Anthropic now has a preliminary injunction
@allinallnotbad Samuel Roland on x
Particularly useful to note, the D.C. Circuit granting a preliminary injunction on 4713 is far less likely here.
@alasdairpr Alasdair Phillips-Robins on x
The ND Cal decision is a win for Anthropic, but there's a second Pentagon supply chain risk designation, which does the same thing as the first and isn't touched by the injunction. Anthropic will have to win twice to get the SCR order undone.
@turn_trout Alex Turner on x
Seem like good reasons for caution. DC circuit might rule much differently.
@_nathancalvin Nathan Calvin on x
Under Secretary Michael confirms Saif's point that even after Judge Lin's ruling, DOW still can (and intends to) enforce its supply chain risk designation against Anthropic under U.S.C. 4713, where the DC circuit has exclusive jurisdiction and has not yet ruled. [image]
@khansaifm Saif M. Khan on x
This is a resounding victory in the N.D. Cal. with @AnthropicAI winning on all issues. An important point, not widely noted, is that DoD issued two supply chain risk designations under separate authorities: 41 U.S.C. § 4713 and 10 U.S.C. § 3252. This ruling strikes down only the

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