Truth is that when Trump accepted the early debate, that is when he lost everything. Had Biden done well, then all questions about Biden would have been put to rest and everyone would have been reassured about Biden's capacity to govern. But the opposite happened. Biden debated and looked frail, weak, and disoriented, resulting in a groundswell for him to drop out of the presidential race, which is the last thing Trump wanted--even if Trump didn't realize it himself. Once he accepted the early debate, Trump was going to lose one way or the other. Nothing to do with conspiracies.