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.

District of Columbia Atty. Gen. Brian Schwalb said in a new lawsuit that President Trump is going far beyond his power under the law. Schwalb asked a judge to find that control of the police department remains in district hands.

A judge has voiced his skepticism about the Trump administration’s attempt to sue all 15 of Maryland’s federal judges over a standing order in a blow to the president’s ongoing war against the judiciary.