28 USC Sec. 566

(a)It is the primary role and mission of the United States Marshals Service to provide for the security and to obey, execute, and enforce all orders of the United States District Courts, the United States Courts of Appeals, the Court of International Trade, and the United States Tax Court, as provided by law.

(b) The United States marshal of each district is the marshal of the district court and of the court of appeals when sitting in that district, and of the Court of International Trade holding sessions in that district, and may, in the discretion of the respective courts, be required to attend any session of court.

©Except as otherwise provided by law or Rule of Procedure, the United States Marshals Service shall execute all lawful writs, process, and orders issued under the authority of the United States, and shall command all necessary assistance to execute its duties.

This codified the common law in the US.

The Court’s order to its district marshal is superior to any DoJ order. If the marshal won’t act, the Court can conpel them into court and hold them in contempt.

Courts (and marshals) can also deputize people to execute their orders. They can also hold others in contempt who contribute to orders not being followed…they can start seizing and freezing assets of Trump’s helpers; they can award money damages as sanctions, they can disbar attorneys. There’s a lot they can do. I hope the courts start playing hard ball with these lawless fucks.