Donald Trump’s justice department has sued the federal judiciary in Maryland over an order that bars the government from deporting undocumented immigrants for at least one day after they file a legal challenge to their detention.

The move to sue an entire bench of federal judges in a single district illustrates pressure coming from the Trump administration on the judiciary to fall in line with the administration’s policies.

“After blatantly violating judicial orders, and directing personal attacks on individual judges, the White House is turning our Constitution on its head by suing judges themselves,” the governor of Maryland said in a statement. “Make no mistake: this unprecedented action is a transparent effort to intimidate judges and usurp the power of the courts.”