So far, most of the candidates that he has endorsed have won. So now, he is "endorsing" them so if they win, he will say it was because of his endorsement. They will complain about his endorsement, it makes them uncomfortable and downright stabby. His supporters know they are jokes, so they aren't really going to vote for AOC and whoever else he has endorsed (that AG in NY I remember). It's mostly pot stirring and leverage.
So far, most of the candidates that he has endorsed have won. So now, he is "endorsing" them so if they win, he will say it was because of his endorsement. They will complain about his endorsement, it makes them uncomfortable and downright stabby. His supporters know they are jokes, so they aren't really going to vote for AOC and whoever else he has endorsed (that AG in NY I remember). It's mostly pot stirring and leverage.