Trump has repeatedly threatened to invoke the Insurrection Act, a rarely used federal law, to deploy the U.S. military or federalize the National Guard for domestic law enforcement, over the objections of state governors.

"If the corrupt politicians of Minnesota don’t obey the law and stop the professional agitators and insurrectionists from attacking the Patriots of I.C.E., who are only trying to do their job, I will institute the INSURRECTION ACT, which many Presidents have done before me, and quickly put an end to the travesty that is taking place in that once great State," Trump said in social media post.

Presidents have invoked the law more than two dozen times, most recently in 1992 by President George H.W. Bush to end unrest in Los Angeles. In that instance, local authorities had asked for the assistance.

“I’m making a direct appeal to the President: Let’s turn the temperature down. Stop this campaign of retribution. This is not who we are,” Gov. Tim Walz, a Democrat, said on X.

Minnesota Attorney General Keith Ellison said he would challenge any such action in court. He’s already suing to try to stop the surge by the Department of Homeland Security, which says officers have arrested more than 2,500 people since Nov. 29 as part of an immigration operation in the Twin Cities called Metro Surge.