Rudy Giuliani, part of Mr. Trump's legal team, said on Saturday that Mr. McGahn's cooperation with Mr. Mueller was part of a legal strategy.
Sessions' move came hours after Trump said he had "total" confidence in Sessions, and shortly after then-White House press secretary Sean Spicer pre-recorded a Fox news Channel interview in which he said there was no reason for Sessions to step away. "Most transparent in history".
The White House's top lawyer has cooperated extensively with the special counsel investigating Russian interference in the 2016 US election, sharing detailed accounts about the episodes at the heart of the inquiry into whether President Donald Trump obstructed justice, the New York Times reported on Saturday.
Trump's personal legal team has urged the special counsel to wrap up its investigations by the time of the mid-term elections this fall, and Trump has maintained his innocence through the duration of the inquiry, calling the Mueller investigation a "witch hunt".
McGahn and his lawyer, William Burck, have reportedly been doing as much as possible to cooperate with Mueller since previous year.
According to sources familiar with the process, President Trump knew about and approved the staffers whom Mueller interviewed.
The report goes on to say that Trump's relationship with the White House counsel is strained, with Trump expressing frustration with McGahn for telling him "no" rather than "looking for creative ways to get him [Trump] what he wants".
"I allowed him and all others to testify - I didn't have to", Trump said in a tweet. There's still negotiation about whether the president should testify.
McGahn has met with the team of special prosecutor Robert Mueller for extensive interviews, the New York Times reports. Beschloss told The New York Times, "This sure has echoes of Richard Nixon's White House counsel, John Dean, who in 1973 feared that Nixon was setting him up as a fall guy for Watergate and secretly gave investigators crucial help while still in his job".
The two reporters are often called out by thepresident due to their extensive and well-sourced White House reporting he sees as overly critical. "They have all the information".
Mr. McGahn, the newspaper said, shared information on Mr. Trump's comments and actions during the firing of the FBI Director, James Comey, and the President's obsession with putting a loyalist in charge of the inquiry.
Critics of the president have recently compared his decision to target the security clearances of critics and those involved in the Russian Federation investigation to the "enemies list" created by the Nixon White House to keep track of political opponents they meant to target with punitive measures.