At the heart of the case is immigration enforcement and Maryland District Court Judge George Russell III's order that every deportation must be halted for two business days to give migrants time for a hearing and due process.

A judge on Wednesday questioned why it was necessary for the Trump administration to sue Maryland’s entire federal bench over an order that paused the immediate deportation of migrants challenging their removals.

A federal judge was skeptical at a hearing Wednesday of the Justice Department’s effort to sue all of Maryland’s federal court judges in a case testing the Trump administration’s effort to limit the power of the judiciary.