We want Joe to be the Dem nominee. I might even go to a Dem caucus and vote for him!
Be careful what you wish for. There are parts of PA, OH and Michigan (and probably others) that like Joe but hated hillary. They just might be tempted to cast the vote they would've liked to cast four years ago.
Just so Joe demonstrates enough mental capacity to be an empty suit on a hanger that Warren can wear, then the Dems will elect him in their primary. They invented the “vote for me, get her” shell game.