According to the New York Times, President Donald Trump was not only irate that Attorney General Jeff Sessions opted to recuse himself from the Russia investigation, he also sent out his top lawyer to demand that Sessions stay loyal to the president.
President Trump gave firm instructions in March to the White House’s top lawyer: stop the attorney general, Jeff Sessions, from recusing himself in the Justice Department’s investigation into whether Mr. Trump’s associates had helped a Russian campaign to disrupt the 2016 election.
White House attorney Donald F. McGahn II followed through with Trump's orders but was unsuccessful:
[T]he president erupted in anger in front of numerous White House officials, saying he needed his attorney general to protect him. Mr. Trump said he had expected his top law enforcement official to safeguard him the way he believed Robert F. Kennedy, as attorney general, had done for his brother John F. Kennedy and Eric H. Holder Jr. had for Barack Obama.
Attempts to gain compliance from Sessions came as new information for the Robert Mueller team as to whether or not the president obstructed the FBI's investigation.