The White House's top lawyer has cooperated extensively with the special counsel investigating Russian interference in the 2016 U.S. 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 Saturday.

Citing a dozen current and former White House officials and others briefed on the matter, the newspaper said White House Counsel Donald McGahn had shared information, some of which the investigators would not have known about.

On Saturday evening, McGahn's lawyer confirmed the White House counsel had cooperated with Mueller's team. "Mr. McGahn answered the Special Counsel team's questions fulsomely and honestly," William Burck said, explaining the president did not ask McGahn to refrain from discussing any matters.