On October 23, in the case of Newsom v. Trump, the US Court of Appeals for the Ninth Circuit ruled Donald Trump's June 2025 federalization of the National Guard in Los Angeles was likely illegal. This decision has little immediate effect, because the National Guard deployment ended months ago, after the Supreme Court ruled against Trump in a related Illinois case. But it has important implications for judicial review of executive invocation of emergency powers to use the military domestically. Among other things, it emphasizes that such actions are reviewable, and the president should get only limited deference. It also adopts a properly restrictive definition of "rebellion" (which is one of the conditions that might justify federalization of the National Guard).
Trump federalized the Guard in response to anti-ICE protests. The district court ruled his action was illegal and issued an injunction blocking it. But the Ninth Circuit lifted the preliminary injunction, in a decision I criticized at the time.
