dallas former u.s. presidents george w. bush bill clinton tell forum dallas thursday able forge mutual bond respect friendship gracious victory respectful presidential power two mention president donald trump nearly hour-long discussion trade quip insights offer indirect reference many crowd 300 people george w. bush presidential library take reference current president clinton humble victory important deal people bush say event mark graduation presidential leadership scholars program partnership among bush clinton lyndon johnson george h.w bush presidential center clinton say want president realize people want able say things good quit kid good future things come together want say god look people beat current president trump come criticism democrats say fire excessive unwarranted criticism predecessor democratic president barack obama person beat election democrat hillary clinton republican bush say office seek democrat clinton advice clinton say leave office tell incoming president bush would offer help treat respect bush clinton say enjoy live presidency would trade current status eight years office decisions make monumental effect people bush say add humility key quality president presidency often define unexpected make job interest say clinton say deal incoming fire undermine ability anything else deal incoming fire keep promise make run two also exchange joke grandfathers bush say grandchildren call jefe spanish chief best thing happen politics consistently underestimate clinton say pretty good bush return presidents bush clinton humble victory responsible power