District Court Judge James Boasberg extended his temporary ruling that immigrants facing deportation must get an opportunity to challenge accusations they are members of the Tren de Aragua gang.

Walker is the only judge on the panel appointed by Trump, who named him to the appeals court in 2020. Before Walker's appointment to the D.C. appeals court, Trump appointed him to the District Court for the Western District of Kentucky in 2019. Walker served on that court for just under a year before being confirmed to the appeals court.