The evidence has already been posted in the DNC Email Leak thread
The writer from Politico sending his article to members of the DNC for approval before publication, DWS demanding an apology from Mika Brzezinski through a direct line to the president of MSNBC, members of the DNC deciding which reporter to give the news to in order to "control the narrative", members of the DNC complaining others are complaining the primary is rigged and conspiring to complain to their producers to get it stopped, giving Jake Tapper direct questions to ask during debates, and even one from the DNC Deputy National Press Secretary, Christina Freundlich, requesting to pull a commentary segment from MSNBC that discusses the relationship between the DNC and the Clinton campaign, heavily implying they knew exactly what they were doing the entire time, and many more
Clinton started out with an advantage and the DNC cheated. The sad thing is she most likely would have won just with the advantage without the DNCs help, they didn't need to cheat
And when you think about, the one person who this hurt, was the truthful one telling us the whole time..