mckay coppins is a senior writer for buzzfeed news who has covered trump closely; he's the author ofook on the republican party's efforts to take back the white house called "the wilderness." and kathleen hall jameison is professor of communications and director of the annenberg public policy center 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 ha

. ♪ >>> and joining me now, mckay coppin, senior political writer, and joy reid.at to have you here in miami. >> good to be here. >> there has been this debate in -- i just talked about this ohio scenario, neck and neck there. trump moved from florida to ohio today. they're doing ohio events. really want to win there. this question of it better for the anti trump forces for john kasich to win and deny the delegates and kasich stays the race or drops out and get to the cruz-trump head-to-head. sam wong who runs american prospect, basically says in which rubio drops out and kasich stays in, may be trumps best option. the counterintuitively it would cause kasich to withdraw, and left with cruz. do you buy that? >> there is a solid case to make. and by the way, you can see that trump has tried for months to keep these candidates in by sort of like helping them out in attacking others saying, rubio is right about ted cruz lying or ted cruz is right about rubio doing this. there is a good case to be made that if -- you know, if ted cruz -- if ted cruz and trump one-on-o

here to lay out some of the strategies for us, buzzfeed reporter, mckay coppins. there are these different factions. we're seeing more and more not only said about it, but written about it, just this morning about the various anti-trump movements. can they actually coalesce, can they come together to unite forces? >> well, that's the big question. i think that one of the big problems the anti-trump forces in the republican party have had is they're always two or three weeks behind where they need to be. when it should have been a four-man race, but it was a six-man race. when it should have been a two-man race, it's a three-man race. they went six months of donald trump being at the top of the polls before they spent any money attacking him with ads. now you see a serious movement. you see a lot of people in the party huddling, talking about how they can best spend their money to knock trump down. but he's on the brink of winning the nomination. he's clearly the front-runner. he has a path to clinching the nomination. at this point, the strategy is just to try to

michael welner, forensic psychiatrist, mckay coppins, buzzfeed reporter and author of "the wilderness" and deep inside the republican party's confess to take back the white house. how he got all those words on one book, i don't know. ryan lizza, washington correspondent for "the new yorker." thank you for the very easy title, ryan, to read. this is what bernie sanders said during the cnn democratic town hall last night. listen to this. >> donald trump is a pathological liar. [ cheers and applause ] we have never -- our campaign does not believe, it never will encourage anybody to disrupt anything. we have millions of supporters, people do what they do. people have the right to protest. i happen not to believe that people should disrupt anybody's meetings. >> dr. welner, to you first. the two other men on this panel will tell you that donald trump doesn't tell the truth often. is he a pathological liar, as bernie sanders says? >> i've got to answer this just from a standpoint of qualification. and a pathological liar is someone who is an individual with very little accomplishment perso