WASHINGTON (AP) — A day after announcing the departure of his White House counsel, President Donald Trump teased today that he’s excited about his choice for a replacement but isn’t ready to share his new lawyer’s name.

Trump said Wednesday on Twitter that Don McGahn will leave in the fall. He has been a consequential insider on Trump’s legal team and a key figure in the administration’s handling of the federal investigation into Russian election interference and possible Trump campaign collusion.

“I am very excited about the person who will be taking the place of Don McGahn as White House Councel!” Trump tweeted today. He sent a later tweet that spelled “counsel” correctly.

Trump also took a shot at reports that McGahn had threatened to resign last year if the president continued to press for the removal of special counsel Robert Mueller as head of the Russia investigation.

“I liked Don, but he was NOT responsible for me not firing Bob Mueller or Jeff Sessions. So much Fake Reporting and Fake News!” Trump said, referring as well to his attorney general, who recused himself from the investigation, much to the president’s annoyance.

Trump said today that the Russia investigation was not a factor, “even a little bit,” in his decision about McGahn’s departure.

White House counselor Kellyanne Conway said at the White House today that Trump will make the announcement about McGahn’s successor. She offered no timetable.

McGahn has done “a fantastic job as White House counsel,” she said, mentioning his work on deregulation and the president’s judicial nominees.

McGahn’s exit, which has been expected for some time, continues the churn of top officials as the administration sets records for turnover and the White House struggles to fill key vacancies.

Unlike some less-amiable separations, however, Trump praised McGahn as “a really good guy” who has done “an excellent job.”