** FILE ** Republican presidential candidate Herman Cain speaks during a GOP presidential debate at Oakland University in Auburn Hills, Mich., on Wednesday, Nov. 9, 2011. (AP Photo/Paul Sancya, File)

Photo by: Paul Sancya

** FILE ** Republican presidential candidate Herman Cain speaks during a GOP presidential debate at Oakland University in Auburn Hills, Mich., on Wednesday, Nov. 9, 2011. (AP Photo/Paul Sancya, File)