How the Democrats went from having an excited and involved Andrew Yang and Tulsi Gabbard in 2016, to pushing to re-elect a cognitively-impaired 80 year old in 2

How the Democrats went from having an excited and involved Andrew Yang and Tulsi Gabbard in 2016, to pushing to re-elect a cognitively-impaired 80 year old in 2024 would make for an interesting expose, that's for sure.