Administration officials said they expect the fight over using the wartime act to ultimately head to the Supreme Court.

More than half of the 261 immigrants expelled to El Salvador on Saturday were swept out of the United States using a wartime powers act, a White House official said Sunday, amid questions about whether the Trump administration flouted a judge’s order barring use of the statute to hasten deportations.

A federal judge blocked the Trump administration from removing any migrants under the Alien Enemies Act late Saturday—but the White House said Sunday that hundreds of alleged gang members had still been sent to El Salvador.