Trump deported dozens of Venezuelans to a brutal Salvadoran jail under the Alien Enemies Act. They were set free five months later — and could fight for their return to the United States, Alex Woodwar

Kilmar Abrego Garcia, a Salvadoran native living Maryland, was mistakenly deported in March to a mega-prison in his home country of El Salvador -- despite a 2019 court order barring his deportation to that country due to fear of persecution -- after the Trump administration claimed he was a member of the criminal gang MS-13,

The letter calls on officials to turn over any agreements between the U.S. and El Salvador regarding the detaining of migrants at the notorious CECOT mega-prison.