GREGG JARRETT (GUEST HOST): The number one question I would ask, Joe, is, "Mr. Mueller, the day before you were appointed Special Counsel, you were sitting in the Oval Office with the president, and isn't it true he told you his reasons for firing James Comey? Which makes you a witness in your own prosecutorial case, which you cannot do under any circumstances?" I'd love to hear the answer to that one. JOE DIGENOVA: Yes, and the other thing is, remember something very interesting, it hasn't been written about, occurred.