When you have Donna Brazile feeding the Clinton campaign townhall questions so that she can prepare the answers. Threats for super delegates switching to Bernie and Debbie Wasserman Shultz stepping down. It's clear evidence of a rigged election. Who knows what was happening that is not in the emails.
Try citing specific ptimsry sources for events which actually happened. There's plenty of hyperventilating and outright propaganda on right-wing blogs but there's a reason why nobody with credibility is claiming the primary was rigged.
Hint: it's the same reason why the alleged victim is going around telling his supporters to vote for Hillary. If you trusted his judgement enough to think he should be president, why not trust his analysis now?
There's a reason why nobody with credibility is claiming the primary was rigged
And that reason is elementary game theory. The only people with incentives to claim that the Democratic primaries were rigged are those who will be left with no political influence if the Democrats fare poorly.
When the Republicans do well, it's because they value party unity over literally everything else. One of HRC's strengths is that she brings the same thinking to the Democrats. For anyone within the party, working against her carries no conceivable upside. And as we've seen in DWS's case, working for HRC means you'll be well taken care of, no matter what.
Basically, if Sanders or anyone else on the left has beef with the DNC, they will be much better off if they wait to bring it up until after the election. And maybe not even then.