The Rachel Maddow Show 12/23/15

Defiant base supports Trump's improbable rise

E.J. Dionne, columnist for the Washington Post and author of the upcoming "Why the Right Went Wrong," talks with Rachel Maddow about the appeal Donald Trump has for Republican voters and whether there is anything in Trump's right-wing populism that Democratic candidates can appeal to as well. ... more Duration: {{video.duration.momentjs}}