Here's that reply:
By the time the debate occurs the need for the Harris campaign to stop the hemorrhaging will be apparent not just to those privy to her internal polling but to the world at large. She will be confronted in the debate with the task of turning around the momentum in the election and she will be under much increased pressure and tension that she is not temperamentally suited to handle.
As the stakes in the debate increase for her, her dilemma of repudiating the Biden candidacy on the one hand or opening herself to charges of flip-flopping on the other hand will grow more apparent to everyone and cause her either to lurch into extremes or submerge herself in banalities in an attempt to hold a middle ground.
She will resort to personal attacks against Trump and references to abortion but these will not be sufficient to halt her downhill slide.
She will not be able to perform in a fashion that requires ad lib., or deft footwork under pressure.
She is going to be doing the old soft shoe all night. It’s all she has.