He's not a pretty-boy candidate. Bernie Sanders is a candidate of by and for the common people. The Hill reports:
Democrats close to Clinton aren’t sounding the alarm over Sanders just yet. They believe he has a low ceiling of support that doesn’t extend beyond the anti-establishment contingent.That could be wishful thinking. Sanders just packed a stadium in Madison, Wisconsin with 10,000 people. That's impressive this early in the campaign season. This event gained the attention of CNN, NBC News, Washington Post, to name a few establishment news media outlets that felt they couldn't ignore the event.
We'll keep an eye on this candidate who challenges the establishment.
Bernie Sanders in Madision, WI 7/1/15