he's kind of waiting to get his memoir published. he wants to have the decorum of not attacking a sitting president. but he's being goaded into action by donald trump constantly invoking him in erroneous ways. usually obama's team goes back at trump but today you saw barack obama in full campaign swing mode in new jersey and virginia. >> doing it himself. so david, president bush's remarks seemed like a point by-point takedown of president trump. let's listen. >> the american dream of upward mobility seems out of reach for some who feel left behind. in a changing economy, discontent deepened and sharpened partisan conflicts. bigotly seems emboldened. our politics seems more vulnerable to conspiracy theories. and outright fabrication. >> so president bush had to have known, david gergen, what an impact his words would have. what do you think his