mike rogers is back with me. cnn national security commentator and former chairman of the house intelligence committee. sources tell cnn that mueller wants to interview the president in the coming weeks. hopes though focus on the decision to fire comey and the push out michael flynn. does this tell you anything about his probe? >> when the investigations are of a sensitive target, a high-profile target, the last person you interview is the most high profile person in that investigation. and so -- why you would do that as you build your case along the way. people come in for interview with their lawyer, probably don't get a lot of information. but there is tidbits. and then the investigators move to next one.