and kathleen hall jameison is professor of communications and director of the annenberg public policyter at the university of pennsylvania. kathleen hall jameison, how much has donald trump exploded politics as usual? >> donald trump has changed the way we talk about politics, the kinds of things that are covered in news, and the ways in which politicians gain access. essentially, his free air time is what anybody else in an earlier campaign would have paid for and called advertising. >> ifill: mckay coppins, has he changed inherently the way the g.o.p. is formulated, the way it functions, the kinds of candidates it will nominate in the future? >> i think he's exploited a shift in the g.o.p. over the past eight years or so in the obama era which is basically the crumbling of the traditional g.o.p. establishments, the parties, the fundraisers, donors who used to wield all the influence and has taken advantage of the right wing counterestablishment made up of new right wing media outfits and pressure groups and really figured out how to court them and ride a wave of influence into becom