(trying to get this thread back on topic.....)
Virtual debates don't work well but even if they end up doing a virtual debate, Trump isn't going to back out. He needs it way more than Joe Biden does.
I thought an outdoor debate would be a good alternative too. If Trump tests negative, have the debate outdoors to prevent further spread.
The 2nd presidential debate has been canceled by the "Commission on Presidential Debates" who has hosted Presidential debates over the last generation.
IMO moving the debate to being "virtual" was intended to help Biden who would be able to use a teleprompter, and the moderator would be able to interrupt Trump when he is saying something they don't like. It was also intended to serve as propaganda to further the narrative that covid is so dangerous that someone infected cannot be in the same room, no matter how large as others who have not been infected yet.
Traditionally, the rules of the debate, including the timing and location have been agreed to by both candidates ahead of time, including the 2nd debate prior to the debate commission unilaterally changing the venue/rules.
There is no rule that says the "Commission on Presidential Debates" needs to host the debate, or even that there needs to be a moderator. The WSJ published an article arguing that Trump and Biden should debate without a moderator, and that each candidate can choose the questions that are asked to the other, and can talk about whatever they want when they are answering the questions. This would ensure both candidates would be asked tough questions