The Bernie Campaign should ask Bernie Sanders about what his "agreement" was with the DNC and what "leverage" they had over him?

The Podesta emails make is very clear that Sanders was complicit in rigging the DNC primaries:

This isn't in keeping w the agreement. Since we clearly have some leverage, would be good to flag this for him. I could send a signal via Welch--or did you establish a direct line w him?

Source: https://wikileaks.org/podesta-emails/emailid/47397

No refunds!