Every debate Trump has participated in has been run and moderated by NeverTrumpers. He’s been battling headwinds from the press, donkeys, and rhinos since June 2015. If Trump jumps into the shark pool, it’s to take a break from battling the lions, tigers, and bears.
And those debates against Hilary Clinton did him no good.
What won 2016 for Trump were his campaign rallies and hard work, even as Hilary Clinton failed to even campaign in Wisconsin and only campaigned in Michigan at the very last minute.
Just campaign hard and forget the debates. Americans have heard from Trump literally every day for 3/4 straight months at the coronavirus pressers and otter pressers where the media hammer him constantly. He don't need another “debate” for yet another media hack to attack him while pretending to be a moderator.
There is no point to it.