She was running against a Black in her own party. She was the front runner and heir apparent, beaten by a nobody Black man who "had no discernible Black dialect and was clean."
Apparently the bar for qualifications as presidential material was completely suspended for this clean Black man who could speak like us Crackers. He beat the unbeatable, heir apparent female, and garnered all the Black votes (that weren't Uncle Toms).
Now had it been the general election instead of a DIM primary, she would have gotten the drones (Black vote), in nearly the same numbers.