dancer, FYI Valerie Jarrett was born in Iran, so she is not eligible to be VP.
On the matter of the debates, I fully expect Biden to come out and fire broadsides, zingers that are intended to mortally wound Trump. If he comes out as Uncle Joe, he stumbles. Only thing he will not do is declare he wants to take the president out by the woodshed to kick his *ss.
If that were to happen, I suspect Trump would knock him out with one punch.