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.

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

FileThe Trump administration has deported alleged members of a Venezuelan gang from the U.S. despite a court order forbidding it.And late on Sunday, the White House said the judge who gave that order did not have the authority to block the administration’s actions.