Sen. Chuck Grassley, chairman of the Senate Judiciary Committee, replied to President Trump's Twitter confirmation of Axios' report that White House counsel Don McGahn would leave the West Wing: "I hope it's not true....U can't let that happen."

The big picture: Grassley's office told Axios that he "has admired" McGahn's work at the White House and believes "there’s not been any White House Counsel who has worked so well and so efficiently with the chairman’s office and the Senate Judiciary Committee on judges."