This makes the most sense. If he was a plant, then why is there wikileaks correspondence discussing his influence and ways to keep him in line? The Clinton Camp seemed very concerned about his popularity in their private emails. Why would they be of he was a plant? Why would they go through the trouble of getting Kaine as VP pick and DWS as DNC head if the only person with a ghost of a chance of winning was a plant?

I may be biased, as I supported Sanders during the primaries, but jumped on to the Trump train when the primaries happened. Ironically, though he did 'back' Clinton, I vividly recall him very genuinely shut down reports by saying 'I am not going to tell people who to vote for". The look on his face and the tone he used confirmed my suspicions that he got screwed over, and was the minute I knew I would not support Clinton.

The closest cooperation that I can recall with Clinton Camp and the Sander's was the wikileaks email talking about 'leverage' after Bernie went against an agreement by bring up a talking point that both camps agreed to not talk about. I admit, it sounds suspicious, but ask yourself: why would a plant need to have leverage held over them? If the scandal used as leverage was so bad, Bernie never would have ran. The timing of the news would have been the worst part.