There is no panic. The replacement team has already been selected. They are laying the groundwork for the last-minute switcheroo.
The media have been given orders to write these stories to make it all seem believable.
I do not believe Harris is part of the replacement team. Nor are Gavin Newsome, Michelle Obama, or Hillary Clinton. It will be a pair of unknowns, suddenly promoted as the "Unity Team".
Biden will be out, due "health issues". That will even be true, though they will be a bit short on details. Harris will simply be out. Perhaps they can blame that on a Trump supporter. Or maybe she will accept the promise of a tenured position at a university or appointment to the Supreme Court.
I appeal to all the Never Trumpers and the Desantis supporters. Think of the reaction of the left if Trump wins. Please think of it!