Whatever was going on with Franken he tried to steer Bill away from his "he won't leave" mantra. As Franken said after Biden is sworn in Trump will be escorted out of the White House. He would have no presidential authority and, besides, the Joint Chiefs are not likely big fans and would not react to any orders from the non-president. The other thing to consider is that Trump is a coward and a delicate flower ego-wise. He couldn't bear the optics of being thrown out of the White House so, yes, he will leave, maybe not graciously, but he will leave.