I believe that the party will not allow Bernie to be the nominee, same as last time. I don't remember what they are called but the votes from various members of the DNC that determine almost half of how many votes a candidate receives went almost exclusively to Clinton and I'm not going to dig it up but would be willing to bet that it always goes to establishment candidates.

Joe Biden in the nominee, the others are just posturing for VP or some future run at the office. I mean, that's what i see happening.