I can tell you that the Sanders folks are working it here in IL. Yesterday they called my son who took a Pub ballot in the 2014 primary, which was his first. Hillary is relying on endorsements and the Cook/Chicago machine.
Good! 
Hope it works out for 'em.
From what I've heard they are claiming fraud in advance of the primary because Clinton was endorsed by the Cook County Democratic Party and included Clinton's name on the their slate, but not Sanders.
I think they are and on another thread I provided links to the Cook county Dem handout. Not only does it not list Bernie, but it lists nobody for US Senate.
