She does have a “mixed-race” husband: Todd (and therefore all of her children, as well) are part Eskimo.
I think most of us know that. To real Americans though, what matters is the content of your character and not the color of your skin (the last great black leader before socialists and anti-American communists hijacked his movement siad something like that). To the hateful left, Todd doesn't count because he does things for himself instead of waiting for Big Government to take care of life for him.