The Trump administration has been bragging that the Supremes let them deport Venezuelans under the Alien Enemies Act of 1798, which of course is a half-truth. The April 7 decision 5-4 stipulates that due process be followed, which is why they ordered 9-0 the return of Kilmar Abrego Garcia who didn't get it, and the Supremes this morning aren't sure that's the case either with the latest group set to be deported.
U.S. Supreme Court temporarily halts deportations of Venezuelan migrants under wartime law
The U.S. Supreme Court early on Saturday paused President Donald
Trump’s administration from deporting Venezuelan men in immigration
custody after their lawyers said they were at imminent risk of removal
without the judicial review previously mandated by the justices. ...
At issue is whether the Trump administration has met the Supreme
Court’s standard for providing the detainees due process before sending
them to another country - possibly to the notorious prison in El
Salvador where others are jailed. ...
Their deportation would be the first since the Supreme Court’s 5-4
ruling that allowed removals under the 1798 law while specifying that
“the notice must be afforded within a reasonable time and in such a
manner as will allow them to actually seek habeas relief in the proper
venue before such removal occurs.” ...
On March 15, the Trump administration deported more than 130 alleged Tren de Aragua members to El Salvador. Many of the migrants’ lawyers and family members say they were not gang members and had no chance to dispute the government’s assertion that they were.