Can you please provide me with a credible source saying he "tried to back out" of debating Kamala Harris?

And HE wanted to dictate the rules of his choice, is that a serious statement?

Do you have amnesia? BIDEN dictated the rules of his only debate with Trump, that delivered the fatal blow on his chances for the nomination.

His demands were so off the chain they figured that Trump would never agree to them, that's the only reason Biden agreed. Biden chose the moderators Jake Tapper and Dana Bash, both from CNN), the forum (CNN), muted microphones, no notes, even which side he stood on.

Tapper has publicly compared Trump to Adolph Hitler. Bash says Trump is anti-Semitic and incredibly dangerous. Yet they were chosen to moderate the debate?

Biden's camp figured there would be no way Trump would accept these terms, these moderators, and Joe we be off the hook, BUT HE DID. So they hauled Biden off to Camp David for countless days trying to prepare him, for naught. They blamed his performance on him having a cold and jet lag.

Do you honestly think Trump is afraid to debate Kamala Harris? Do you think the terms of that first debate were fair and impartial?

It did not phase Trump who sadly ripped the poor old man to shreds.

So keep believing that your girl is going to mop the floor with Trump, and let's just see how it all plays out.