In an interview on Tuesday, President Trump said his frustration with Jeff Sessions goes beyond his recusal from the Russia investigation: "I'm not happy with numerous things."
The special counsel noted that the legal guidelines suggest a sentence of zero to six months. George Papadopoulos pleaded guilty to lying to the FBI about contacts with Russians.
Allies of President Trump have targeted the deputy attorney general over what they call foot-dragging by the Justice Department in response to requests for information.
White House Press Secretary Sarah Sanders says former CIA Director John Brennan and others have "politicized and in some cases monetized their public service and security clearances."
President Trump's lawyer said he and the rest of the president's team are "very comfortable" with Cohen working with investigators, as long as he tells the truth.
Cohen once said he would "do anything" to protect Donald Trump. Facing an ongoing FBI probe of his finances and business dealings, Cohen now says his "first loyalty" rests with his family.
Michael Horowitz, the Justice Department's inspector general, took questions Tuesday from lawmakers about the voluminous report his office released last week.
Stone said he could be under investigation by special counsel Robert Mueller for alleged crimes unrelated to his role in the 2016 presidential election.
President Trump's personal lawyer said "conflicts" prevented Joseph diGenova and his wife, Victoria Toensing, from joining the team, just five days after he said they were on board.