His whole life. When he figured out that if he did not appear as an angry black man, whitey would bend over backward to accommodate him. So he got scholarships to ivy league schools, got appointed to Harvard law review and then wrote a book about himself and ultimately got unbelievable good press all through his candidacy.
He is a flim, flam man, a charlatan who does not know how to tell the truth and is laughing all the way to the bank for the rest of his life.