Mark Salter on Trump: 'I think he could come apart'

Former top John McCain aide and one of the most prominent Republicans to publicly back Hillary Clinton over Donald Trump – tells Glenn Thrush that he believes the 2016 campaign could drive Trump insane- literally clinically insane- on cable TV. Salter also discusses the decision to choose Sarah Palin as McCain's VP and if that choice cracked the door open for Trump's candidacy. Learn more about your ad choices. Visit megaphone.fm/adchoices