When we get the rona under control, and IF we have a presidential debate, it's over. Biden has clearly lost it, and Trump will smell blood, attack, and offer no quarter.
But it won't get t hat far. The DNC will be forced to find another candidate by then. I'm sure they're deep into that process already.
The problem they have, is nobody they have can beat Trump. Maybe Oprah, maybe Michelle Obama, maybe... naw, not Cuomo.