Like Before?
The only thing you need to watch is this...
http://www.rasmussenreports.com/public_content/politics/trump_administration/prez_track_jun12
It shows Trump and Obama at the same point. As long as Trump is close we are good. Biden has Alzheimer’s. So, as soon as the debates start somebody will draw blood, and then the piranha’s will fight so fast that their will be nothing left but a cloud of warm blood in the water.
The democrats are using Biden as a blocker. Plan A is that he wins and brings with him a second tier future of the party candidate. If he can’t win. Then he will deflect fire for someone who can. The party wants Mayor Pete mostly. But they will take Warren or Harris.