Hardball with Chris Matthews 02/04/16

Sanders, Clinton spar over progressive label

New NBC/Wall Street Journal/Marist polling in the "live free or die state" shows Senator Bernie Sanders holding on to a 20 point lead over Secretary Clinton after the Iowa caucus. NBC News’ Andrea Mitchell, DNC chairwoman Rep. Debbie Wasserman Schultz and former Vermont Governor Howard Dean discuss. ... more Duration: {{video.duration.momentjs}}