Immigration advocates are racing to file new lawsuits challenging President Donald Trump’s deportations under a rarely used wartime law after the US Supreme Court tossed out a lower court judge’s nationwide pause.

The government has notified Venezuelan men in custody that they are at imminent risk of deportation, doubling down on the use of the Alien Enemies Act.

The Trump administration is appealing efforts by two judges to investigate whether government officials defied their rulings over the deportation of migrants to El Salvador, escalating a confrontation between the executive and judicial branches.