" Interestingly while the Nuremberg Laws are now history, the “one drop rule” is very much with us, not only as a matter of law but also as a matter of personal identity. Think about Obama: he’s half white and half black, yet he identifies as black. Many African Americans have white ancestry, yet they consider themselves black. Why? Because of the one-drop rule. If any of these people tried to self-identify as white—or refuse to racially classify themselves at all—left-wing groups like the Black Caucus and the Southern Poverty Law Center would condemn them for it. "

― Dinesh D'Souza , The Big Lie: Exposing the Nazi Roots of the American Left