MS NOW

The Sanders coalition: Not what we thought it was

Bernie Sanders’ coalition may be quite different -– and much bigger -– than has been assumed.

Rev. Sharpton interviews Sanders February 10, 2016 / 07:26

Steve Kornacki

Steve Kornacki, author of "The Red and the Blue: 1990s and the Birth of Political Tribalism," is a national political correspondent for NBC News and MSNBC.