The Last Word with Lawrence O'Donnell 05/09/16

Sykes: Trump not capable of uniting GOP

Trump campaign staffers met with the RNC to go over general election strategy. Still, tensions remain high between Trump and Paul Ryan after Trump said he can win without uniting the GOP. Ari Melber discusses with Christian Schneider, Charlie Sykes, and David Corn. ... more Duration: {{video.duration.momentjs}}