On Wednesday, Trump praised Barr on Twitter for the attorney general's intervening in the case: "Congratulations to Attorney General Bill Barr for taking charge of a case that was totally out of control and perhaps should not have even been brought."

Barr said on ABC News on Thursday that Trump "has never asked me to do anything in a criminal case" but should stop tweeting about the Justice Department because the president's tweets "make it impossible for me to do my job."

Trump quoted part of Barr's saying on Friday, declaring that he has the "legal right" to ask his top law enforcement official to intervene in a criminal case.

"'The President has never asked me to do anything in a criminal case.' A.G. Barr This doesn't mean that I do not have, as President, the legal right to do so, I do, but I have so far chosen not to!" Trump tweeted.

Senate Minority Leader Chuck Schumer has called for the Justice Department's inspector general to investigate what pressure Trump and Barr might have exerted behind the scenes.

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