mueller has nothing on his client. >> i can guarantee you this, when mueller is finished, no matter what he does, he will not have a stitch of evidence. that is a disgrace. the case should be over. >> "the washington post" reports that giuliani pushed him on the timetable for ending the investigation. an interview would be essential for the investigators before they wrap up the obstruction of justice probe. >> let's bring in tal kopan in washington this morning. >> good morning. >> good morning. >> let's talk about dr. ronny jackson and the allegations facing him. he was popular with democratic and republican presidents alike. and if these allegations, and they are just allegations, is true and is it disqualifying?