While a Harvard undergrad, Clarke argued in the student newspaper that blacks had greater “mental, physical and spiritual abilities” than whites because of the amount of melanin in their skin, a racist theory advocated by race-baiters like Louis Farrakhan and the Nation of Islam. As president of the Harvard Black Students Association, she invited author Tony Martin to speak on campus, despite his rabid anti-Semitism and Holocaust denial. She then defended him as a “black intellectual who bases his information” — i.e., his anti-Semitic slurs — “on indisputable fact.”