Stranger things have happened. George H Bush blasted Reagan's "voodoo economics" before becoming his VP. Still, I don't think it is going to happen.
- Sanders burned a lot of bridges to get where he is now. He's pretty much gone to war with the liberal arm of the Democratic party, called Clinton "unqualified", only made a token repudiation of the Nevada violence. Not sure he has a lot of fans among the Clinton team or the party leaders in general.
- He has a terrible rep in the Senate for working with others to get things done. If Clinton is looking for a Biden like agent who can work for her in the Senate to rally the home team, Sanders is not your guy. Nor does he have a rep for being willing to be a solid number 2 guy, debating in private then supporting the leader in public. I think that is what his fans like about him, but it's not going to endear him to Clinton.
- He'll be more influential as a Senator. Sanders was pretty much an unknown before this election cycle. He has a much bigger profile now and should have a much bigger voice. He could be a real factor is he hit the campaign trail for lefty candidates. Hard to do that as VP.