For all they put him through Trump has remained unwavered for the last 4 years. Biden has a temper he can't control, we've seen his buttons being pushed while he was out canvasing, imho, they'll destroy him to the point the Dems will be trying to hide him like they did with Hillary.
z0, if she does, and he gets the nomination Trump will be talking about it constantly... because that's what he's good at. He'll poke Biden relentlessly and with Biden's temper there is no way he can maintain composure.
Honestly, Biden has just been rendered an unviable candidate.
We use to only have the problem of a temporary Market crash due to a forced shut down to combat a virus. But thanks to a premature over reaction of close to $2T stimulus package and $4T Fed support that will have almost no effect until the sickness at least maxes out, on top of a >$23T Debt, High Unemployment in the coming years of mass Austerity Measures will be the norm.