Willie Herenton hopes voters in Tennessee 's 9th District will look at color of his skin . Herenton challenging incumbent Rep. Martin Luther King Jr. in American primary . Cohen has backing of Congressional Black Caucus , Obama . Both candidates say they think Steve Cohen would be proud of their work .
Willie Herenton hopes voters in Tennessee 's 9th District will look at color of his skin . Herenton challenging incumbent Rep. Steve Cohen in Democratic primary . Cohen has backing of Obama , Congressional Black Caucus . Both candidates say they think Martin Luther King Jr. would be proud of their work .