Microsoft is throwing its weight behind Anthropic in asking a federal court to block the Trump administration’s designation of the artificial intelligence company as a supply chain risk.
Associated PressPages from the Anthropic website and the company's logo are displayed on a computer screen in New York on Thursday, Feb. 26, 2026. – Microsoft is throwing its weight behind Anthropic in asking a federal court to block the Trump administration's designation of the artificial intelligence company as a supply chain risk.
Microsoft, in a legal filing, is challenging Defense Secretary Pete Hegseth's action last week to shut Anthropic out of military work by labeling its AI products as a national security threat.The Pentagon took the action against Anthropic after an unusually public dispute over the company's refusal to allow unrestricted military use of its AI model Claude. President Donald Trump also said he was ordering all federal agencies to stop using Claude. “The use of a supply chain risk designation to address a contract dispute may bring severe economic effects that are not in the public interest,” Microsoft, a major government contractor, said in its Tuesday filing in the San Francisco federal court, where Anthropic sued the Trump administration on Monday. The Pentagon's action “forces government contractors to comply with vague and ill-defined directions that have never before been publicly wielded against a U.S. company,” Microsoft's legal brief says. It asks for a judge to order a temporary lifting of the designation to allow for more “reasoned discussion.”Microsoft also sided with Anthropic's two ethical red lines that were a sticking point in the contract negotiations. “Microsoft also believes that American AI should not be used to conduct domestic mass surveillance or start a war without human control,” Microsoft said. “This position is consistent with the law and broadly supported by American society, as the government acknowledges.” Copyright 2026 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.Veteran helped by Operation New Uniform shares how $10K donation will help service membersTracking much-needed rain in our forecast as drought drags onJacksonville OIG launches investigation into JEA over millions in potential unpaid capacity fees‘The people’s utility’: Carrico considering council action after IG requests review of JEA feesLudacris takes the stage at Military Appreciation Day during The Players ChampionshipLawsuit filed over firearm policy at Bradford County FairMarch 10, 6 p.m. scene of a crash on Edgewood Avenue, News4JAX working to learn moreClay County to bring K-9s into high schools. Some parents have concerns about the programGet your garden growing! The weather is perfect and there is some rain on the wayDon't pack up the jacket despite near record highs in our forecastMorning Show anchor Bruce Hamilton shares update on his cancer journey🐾 Meet Chowder, a big-headed sweetheart with an even bigger heartThe Players Championship practice rounds get underway under sunny skiesMeteorologist Katie Garner breaks down your forecast for The Players Championship this weekDeadly Westside crash closes lanes on 103rd Street near Valdura AvenueOff-duty Nassau County deputy rescues child from retention pondBishop Kenny boys basketball team has used youth to power run to final fourLoss last year in playoffs fueled this season's playoff run for Bishop KennyJFRD didn’t inspect a halfway house for 59 years. Now the house faces costly issuesProposal could bring new public beach access to Ponte Vedra BeachAG Pam Bondi talks about attack in New York CityAnother popular downtown business prepares to shut downWith days to go, House, Senate still at odds over Florida’s budget
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