No way in heck can Biden debate Trump without showing his dementia. For big speeches like the State of the Union, Biden was hopped up on stimulate drugs and even then couldn’t follow the teleprompter. He needs cue cards for press conferences with the question, answer and a picture of the reporter. Bidens handlers will think of some lame excuse why he won’t debate Trump.
Trump leads. There is no need to debate.
And if he is pressured and forced to, the conditions will be strictly independent journalists from right wing media organizations in mid America as the moderators. Under no circumstances will moderators from MSM organization Swamps be allowed.
If the Biden team refuses, that is their choice. Trump has a lead. He would lose nothing from a Biden refusal of those conditions.