Former attorneys general William Barr and Jeff Sessions have both said they were unaware of the subpoenas.
An official within the Justice Department insists John Demers’s resignation is not related to the controversy.
Reports of the Trump administration running its own version of Nixon’s “White House Plumbers” landed with a boom.
“To say that they didn’t know anything about it is beyond belief,” the Speaker of the House said on Sunday.
The “politicization” of Trump’s Department of Justice “is harrowing,” Speaker of the House Nancy Pelosi said.
The DOJ, under former Attorney General William Barr, chose not to charge Trump over 10 possible acts of obstruction.
The DOJ misled the public and arguments for keeping the memo secret “are not worthy of credence,” the judge ruled.
Justice Department lawyers argued a case should be tossed because it would “be moot” with Trump leaving office.
The Trump administration has trampled over an array of barriers, both legal and practical, according to court records.
Lev Parnas has accused Barr of timing his arrest last fall to prevent him from testifying at House impeachment hearings.