 Because they want to find an excuse and create the narrative to get Biden out of there because they know he ain't going to win. They know he decrepit and he's old and he's been embarrassing them the last two or three years. So they set him up to do a debate very early, earlier than any debate in presidential history. Because they want to frame it to where if he take a pool on stage, which they know he would, that they have enough time to do damage control and replace him.