Oh, for pity's sake!
The most damning pieces of evidence unearthed were:
1. Donna spilling the beans on a debate in Flint, Michigan, revealing there might be a question about poisoned water in, yep, Flint, Michigan. Big eff'n surprise.
2. There was some talk about using Bernie's faith (or lack thereof) against him. No one was ever able to point to a single instance of same actually being used.
So, all you have, in the end, is, in the DNC, comprising a bunch of political animals, there is politics going on, folks expressing strong preferences. I guess, that warrants the allegation of "corruption" once you've beaten both Pope Francis and Jesus Christ in a morality contest.
But yeah, that was the basis for marching orders issued in Rightardia, click-bait on every rightarded "news" site for weeks, collective hyperventilation about unprecedented corruption at the DNC ensuing. So yes, that was all fairly minor in substance, entirely inconsequential as an issue, and fairly damaging as to Hillary's electoral prospects, even though her participation also was never established.
I mean, really, were you born yesterday?