In a morning tweet, Mr. Trump quoted Mr. Barr saying that the president "has never asked me to do anything in a criminal case." The president said he had "so far chosen" not to interfere in a criminal case even though he insisted that he is not legally bound to do so.
"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!" he said.
The assertion by the president, rejecting a request by Mr. Barr to stop tweeting about the department's cases, adds to the mounting controversy over the decision by senior Justice Department officials to overrule prosecutors who had recommended a seven to nine year sentence for Mr. Stone, who was convicted of seven felonies in a bid to obstruct a congressional investigation that threatened the president.