In watching the conference today, Trump seemed weary and tired. He had to refocus a couple of times and lost his place while he was reading from notes. He then introduced Pence to comment and mentioned that Mike had gotten very little sleep. I would lay odds that both of them haven't gotten much sleep. Trump's main outlet from all the mudslinging is holding rallies and getting feedback from his massive rallies and right now, he can't do that because of the virus. He's only getting the usual MSM/DEM negative feedback. IMHO there's is much more to this and I believe it has everything to do with Biden's connection to China and Trump knows its.