mcgahn's departure on twitter, where else? and moments ago said this. >> he was a good man, very good man. don? excellent guy. don mcgahn is an excellent guy. with me a long time, privately before this, he represented me. been here almost for two years. a lot of affection for don. he'll be moving on probably to the private sector, maybe the private sector, and he'll do very well, but he's done an excellent job. >> reporter: are you concerned about what he said to the mueller team? >> no. i knew he was going, also. i had to approve it. we didn't claim executive -- no, i don't have to be aware. we do everything straight. we do everything by the book. and don is an excellent guy. >> the message is confirmation of what sources told cnn in the days after the president learned just how much mcgahn has