MSNBC Live with Tamron Hall 03/14/16

GOP struggles to stifle Donald Trump's momentum

Will Marco Rubio pull off a win in Florida's primary or is Donald Trump unstoppable? The Washington Examiner's Kristen Soltis Anderson joins Tamron Hall to discuss Republican poll standings ahead of several states' primaries and explains what could be motivating Donald Trump's biggest supporters. ... more Duration: {{video.duration.momentjs}}