Gavin Newsom’s legislative minions just got a lesson in constitutional supremacy

# Why This Matters

California spent years building what it thought was a firewall against federal immigration enforcement. The "临Kalifornia Values Act," passed in 2017 and expanded in 2019, prohibited state and local police from cooperating with Immigration and Customs Enforcement, banned ICE from using state facilities, and barred officers from asking about immigration status during routine stops. The law was Newsom's flagship sanctuary state policy—a direct repudiation of Trump administration immigration enforcement and a signal to the state's immigrant communities that California would be different. On Monday, a three-judge panel of the Ninth Circuit unanimously dismantled it, ruling that the Supremacy Clause of the Constitution forbids California from blocking federal agents from doing their job, regardless of state policy preferences.

The specific mechanics matter here. Federal law gives ICE broad power to detain immigrants in the country illegally and pursue removal proceedings. California's law didn't criminalize ICE agents or arrest them—it simply said state and local officials couldn't help them and couldn't grant them access to jails and police facilities. The court found this constituted an impermissible obstruction of federal authority. Judge Ryan Smith, writing for the panel, stated that "a state cannot, through legislation, nullify or impede the operation of federal law or federal agencies." It's the legal equivalent of saying you can't build a sanctuary by locking the door—the Constitution won't let you do it.

The precedent here runs back to McCulloch v. Maryland (1819), where Chief Justice John Marshall established that states cannot use their own powers to obstruct federal functions, even on their own soil. That principle has been tested repeatedly—in school desegregation, federal tax collection, and drug enforcement—but it's never been popular when applied to immigration, where sanctuary jurisdictions have built entire political movements around the idea that they can opt out. California just lost that argument in front of a court that included two judges appointed by Democratic presidents. The unanimity is notable. This wasn't a split decision that could be painted as ideological; it was a straightforward application of constitutional hierarchy.

The conservative read is clean: California overplayed its hand by treating state sovereignty as a trump card when the Constitution clearly establishes otherwise. Democratic officials ran on the promise of nullification—that they could simply refuse to cooperate with federal immigration law—and sold voters on the idea that this would work. It didn't, because you can't amend the Constitution through legislation. The real sting isn't that ICE will now operate with perfect freedom in California; it's that the court rejected the entire legal theory that made sanctuary policies work. This is a judicial rebuke to the idea that progressive values can override constitutional structure, which is exactly the kind of thing that should concern anyone who cares about the rule of law, whatever their politics.

What happens next matters more than Monday's decision. California has options: appeal to the full Ninth Circuit (a longer shot given the panel's unanimity), ask the Supreme Court to hear it (which would be a clear escalation), or simply accept the ruling and watch how ICE actually operates now that it has judicial permission to use local facilities and coordinate with state police in different ways. The state's Democratic legislature could also attempt new legislation that's more narrowly tailored, though Monday's decision didn't leave much room for creative lawyering. Watch for whether the Biden administration's Justice Department appeals the decision (they didn't support California's position) and whether other blue states with similar laws move to revise them preemptively or dig in for their own legal fights.