She endorsed him as a means to take up the mantle (once he lost) of the rabid leftist moonbats. Chica has Presidential aspirations herself.
I think AOC will be a lot like Squaw Warren or Kamalamadingdong Harris in a POTUS run. Lots of media hype, not so many votes.
Her ego knows no bounds. An American success story: From lowly bartender to President/Empress of the World!