Democratic candidates get nasty ahead of New Hampshire primary

Leading Democratic presidential candidates have stepped up attacks against each other ahead of tomorrow's New Hampshire primary. Senator Bernie Sanders and former Mayor Pete Buttigieg were the two victors in the Iowa caucuses, and are leading in the New Hampshire polls. Who will get the third ticket is the big question now for former Vice President Joe Biden, Senator Elizabeth Warren and Senator Amy Klobuchar. The primary could be a make or break vote for some of the Democratic candidates. David Paleologos is the Director of the Political Research Center at Boston's Suffolk University. He speaks to Gyles Beckford