Deep divisions and disarray within the Democratic Party, fully surfaced in the wake of the Nevada convention brouhaha , suggest that July's national convention in Philadelphia could serve as ground zero for a battle over the party's very soul. Beyond their calls for Bernie Sanders to exit the race before every state has had a chance to vote, establishment Dems this week expressed "fear," as CNN put it , "that if Sanders does not rein in his supporters, the same ugly scene that occurred in Las Vegas last weekend could replicate itself in the Democratic National Convention in Philadelphia."