Bernie doesn't know how to control anything. He's weak on that front, and he would be a weak President. He's all "Wall Street blah blah blah" and "break up the banks blah blah blah" and the "poor Middle Class blah blah blah". He's all talk, but how much would he really be able to get done as President?
So I'm saying in a round about way, yes there will be awful protests at the DNC because Bernie does not have control over his minions.
Remember this? No control.
https://www.youtube.com/watch?v=6BnbwUT7lBg