Earlier quoted context omitted.
First off, while there was an irrefutable bias in the DNC during the primaries, and shitty moves made against Sanders as a result of that bias, that is not the same thing in any way to rigging the primaries. That's a much stronger allegation with no evidence I've yet seen provided. The DNC was deplorable and idiotic in its rejection of Sanders and active working against his campaign. But the primaries were not rigged…
I agree not rigged, but giving Hillary debate questions in advance comes pretty close. In my opinion, the DNC emails and the Trump "grab 'em" tapes are similar -- you can argue that it's private material that should've stayed that way, but you can't argue that the material didn't reveal helpful truths about the candidates. Finally, a recent poll found 50% of Democrats think that Russia tampered with the vote tallies…
http://thehill.com/blogs/ballot-box/presidential-races/30386...
>"If Bernie Sanders had been the nominee of the party and the Russians hacked my emails instead of John [Podesta]’s, we'd be reading all these notes between Donna and I and they'd say Donna was cozying up to the Bernie campaign. This is taken out of context. I found her to be a fair arbiter, I think she did a good and honest job."
Turns out they weren't even debate questions:
http://www.nbcnews.com/card/top-sanders-aide-defends-dnc-cha...