On Monday, the U.S. Supreme Court ruled that the Trump administration may use the rarely invoked Alien Enemies Act to carry out deportations, provided that individuals facing deportation have the opportunity to challenge any evidence against them in court. This decision came after a federal judge had imposed a temporary nationwide ban on deportations under the wartime law.

In a related case, Chief Justice John G. Roberts Jr. temporarily blocked a trial judge’s order, which had directed the U.S. government to return a Salvadoran migrant, who was mistakenly deported to El Salvador. The decision grants the Court additional time to fully review the issue.

The migrant in question, Abrego García, has been detained at a large prison facility in El Salvador since his deportation last month. This move occurred despite an existing court order that prohibited his removal, as he had fled death threats from gang members in his home country.