Pizzashill be like

well-sourced reports based on interviews with the heads of the Trump campaign (from before Biden quit, mind) suggested their whole strategy was built around running up the numbers against a weakened Joe Biden:

In the months that followed, Trump and his campaign would seize on Biden's every stumble, his every blank stare, to reinforce that observation, seeking to portray the incumbent as "stuttering, stammering, walking around, feeling his way like a blind man," as LaCivita put it to me. That was the plan. And it worked. Watching Biden's slide in the polls, and sitting on hundreds of millions of dollars for an advertising blitz that would punctuate the president's visible decrepitude, Trump's team entered the summer believing that a landslide awaited in the fall.

Only one thing could disrupt that plan: a change of candidates atop the Democratic ticket.

There was always a certain danger inherent to this assault on Biden's faculties. If Wiles and LaCivita were too successful—if too many Democrats decided, too quickly, that Biden was no longer capable of defeating Trump, much less serving another four years thereafter—then they risked losing an ideal opponent against whom their every tactical maneuver had already been deliberated, poll-tested, and prepared. Campaigns are usually on guard against peaking too soon; in this case, the risk for Trump's team was Biden bottoming out too early.

In my conversations with LaCivita and Wiles over the past six months, they assured me multiple times that the campaign was planning for all contingencies, that they took quite seriously the possibility of a substitution and would be ready if Biden forfeited the nomination.

By mid-June, however, not long before the debate, their tone had changed. Trump was speaking at a Turning Point USA rally in Detroit and the three of us stood backstage, leaning against the wall of a dimly lit cargo bay, a pair of Secret Service vehicles idling nearby. When I asked about the prospect of Trump facing a different Democratic opponent in the fall, LaCivita and Wiles shook their heads. They told me it was too late; the most influential players in Democratic politics had become too invested in the narrative that Biden was fully competent and capable of serving another four years.

Trump himself even whined

So, we are forced to spend time and money on fighting Crooked Joe Biden, he polls badly after having a terrible debate, and quits the race. Now we have to start all over again. Shouldn't the Republican Party be reimbursed for fraud in that everybody around Joe, including his doctors and the Fake News Media, knew he was not capable of running for, or being, President? Just askin'?

Now that Biden got his butt was kicked so hard in the polls he had to drop OUT OF THE RACE, the same copers are now saying "Trump is too scared to debate Kamala!"

Then why does he not want to debate her