I don’t think she is old enough to remember what Sambo was, let alone call someone that.
As for supposedly calling Hillary what she is supposed to... Ya gotta calls ‘em as you sees ‘em.
I can remember “Little Black Sambo” before people tried to wipe him out. He was the cutest and the smartest, and he could make “tiger butter” out of a tiger.
I would vote for Sambo, if I could find his name on any ballot, but he seems to be gone.