The Trump administration is urging a federal appeals court to reassign a case challenging its use of the Alien Enemies Act for swift deportations, arguing that the judge overseeing the matter has handled the case improperly.

In a letter to the U.S. Court of Appeals for the District of Columbia Circuit, the Justice Department called for the removal of U.S. District Judge James Boasberg, an appointee of former President Barack Obama, after Boasberg issued a nationwide injunction on Saturday blocking the administration’s plan to deport suspected members of Tren de Aragua, a Venezuelan gang.