Ken Blackwell on why Herman Cain 'should be humble, state his case and exit the stage'

Herman Cain's campaign could soon be nearing an end. The GOP presidential candidate continues to dogged by allegations of sexual harassment. Cain says that he'll decide whether to  drop out of the race in the next several days.

Today on American Morning, Ken Blackwell, Executive Vice President of the National Federation of Republican Assemblies and friend of Herman Cain, explains to Carol Costello why Cain needs to exit the race now.