In a significant legal blow to the Trump administration’s immigration agenda, a federal judge has slammed the brakes on a controversial deportation policy that allowed the deportation of migrants to countries where they had no prior connection — without first giving them a chance to challenge their removal in court.

A U.S. appeals court on Monday declined to lift an order blocking the Trump administration from sending people with final deportation orders to countries not cited in earlier proceedings without first letting them make a case for humanitarian protection.

The Trump administration argued that a federal judge couldn’t force the government to remedy the mistake.

Kilmar Abrego Garcia, a legal resident protected from deportation by a 2019 court order who has lived in the U.S. since 2011, was deported to a notorious Salvadorian prison on March 15.

A federal judge called the deportation of a Maryland man to a notorious Salvadoran prison a “grievous error,” adding that the Trump administration’s conduct “shocks the conscience.” The judge has ordered the government to return the man,

The Trump administration has until 11:59 p.m. Monday to return to the United States a Maryland man who the government admits was accidentally deported to a high-security prison in El Salvador.

President Donald Trump asked the U.S. Supreme Court on Monday to temporarily halt a judge's order requiring his administration to return by the end of the day a Salvadoran man who the government has acknowledged was erroneously deported to El Salvador.

An airline known for operating ultra-low cost flights out of smaller U.S. airports has signed an agreement with the U.S. Department of Homeland Security’s (DHS) Immigration Control and Enforcement agency to carry out deportation flights.

Avelo Airlines, a relatively new and fast-growing ultra low cost carrier, agreed to operate ICE deportation flights from Arizona starting in May.