neither parent was a US Citizen. However, a child born in the USA is (generally) considered a "naturally born citizen" when they come of age. There may be other rules in certain cases, but I don't know of any that apply here (unlike Barry Soetoro, who was legally adopted in another country, etc.)
I would be happy to entertain evidence to the contrary.
She identifies as black, we have to trust all women, and women are notorious for changing their minds. HOW ABOUT DNA?