Who is going to fact check? Will there be false fact checking such as Candy Crowley did in that Obama/Romney debate? What good is a fact checker if some media stooge gives us the wrong facts in real time at the debate?
I'm sure they'll use "fact checkers" friendly to their agenda. Snopes, SPLC, ADL, etc.
The only way out of this mess for Joe Biden will be to make the conditions for the debate so lopsided that President Trump refuses to participate. And then Biden's handlers will say, "We wanted a debate. Trump said no. He's the one afraid!"