 Cohen defeated attorney Nikki Tinker by a 79% to 19% margin in the Democratic primary.Cohen, who is the only white congressman representing a majority black district, defeated Tinker, who is black, by a much narrower margin in 2006.There was much controversy over accusations made by the Tinker campaign that Cohen was involved with the Ku Klux Klan, and circulation of anti-Semitic propaganda against Cohen, who is Jewish.