If Kamala will accept a debate by a neutral party, I'm sure Trump will do it.
The problem is that Kamala will only do a stacked debate.
She was better than Trump in he last debate. But that's partly because she was being unfairly sided by the mods and her bar was outdoing Biden's performance. Which she easily scaled. That said, Trump was poor. There were so many easy gimme's he missed.
What was the lie? I could be wrong but I think he is right that she was never corrected or fact checked once and he was multiple times. Maybe not 9. Wouldn't that just be an exaggeration rather than a lie?