No, it will never happen because this is a total fantasy. Fetishism for sure. They disagree on most issues except pot and military interventionism. Sanders gains nothing with him on the ticket, 3 percent of likely GOP voters? Huge scandals? More rolls of tin foil?
https://www.youtube.com/watch?v=uc7wzV1IBOw Um, lulz, I already said it wouldnt happen. I think the tenor of the thread has been missed...
Though as a random point of fact, there was research done after the last election that strongly suggested that had Romney managed to get the support of a decent segment of Ron Paul voters it would have put him over the top in several swing states and handed him the election.
Swinging 3% of GOP voters from red to blue in just 3 states might be something you laugh at, but its also enough to guarantee victory.