He still needs to capture the nomination at the convention.
I still think he is going to bow out due to health reasons.
Another scenario that has crossed my mind is that should he win they could remove him at anytime with the 25th amendment because of dementia and then its hello President Stacy Abrams or whatever other black chick they pick for his veep.
This election is all about Trump. Nobody else can not be Trump any better than sleepy Joe and the people who hate Trump will vote against him for anyone.