I don't get it. If Obama is black as you said, then it is 100% valid to say that Obama is white, cos Obama is as black as he is white. So ... yeah, we all know Obama won and he's the first mulato US president.
That's not how things work in America. Honestly the majority of black population in America could classify as mulato. I have several relatives that have two "black" parents that are lighter than Obama complextion wise. Particulary in the Southeastern U.S, if you have one ounce of "black" blood in you and you don't look 100% white you are considered black. BTW Sorry for getting off topic.