 An entourage of 30 or so are noisily hustling to follow a trim blonde woman in a pristine white suit as she strides nonchalantly past clanging, gurgling, throwing vats, aiming for a back office. This is my first glimpse of First Lady Dr. Jill Biden exiting the sealed chamber of power into the middle of America, a vision of calm amid utter cacophony. You want to know why Joe Biden is going to stay in the race? That's the reason why he's going to stay in the race. Out, out, damn spot!