Hillary Clinton, then Harris would have an accident.
I still think its going to be Hillary Clinton. She still has many followers in the Democrat-Progressive Party. She has slowed down with age. She will not need to “get rid of” Harris. The GOP dominated House and Senate will impeach her making Hillary President (at long last) She will pick Rice as her VP and go down to flaming defeat before Trump in 2024. Trump will pick Rand Paul as his VP. SO—as my Ouija Board says: Biden President 2021-22, Harris 2022-23, Hillary 2024 then Trump 2025-29—if there is anything left of the USA. This is barring Civil War or a Military Junta.