On MSNBC’s Morning Joe, Mike Barnicle reacts to Hillary Clinton’s defensiveness over fellow Democratic presidential candidate Bernie Sanders and his supporters. “I don’t think it’s the tone of Bernie Sanders’ campaign or his rhetoric that is aggravating the Clinton people, it’s the fact that her leads have collapsed in state after state. It’s her frustration in dealing with a 74-year-old Democratic socialist from Burlington, Vermont, that they can’t put away. Also interesting is that there is almost a joyousness in the Sanders crowds,” says Barnicle. Watch the Morning Joe conversation on the Democratic campaign and discussion of Senator Sanders’ impressive crowds, including the latest rally in the Bronx, estimated at 18,500 supporters strong.