I was a Cain supporter until he showed his inability to effectively combat a series of personal attacks. Unless he causes some heads to roll and discloses the people behind the attacks in the immediate future his political career is over before it began.
Herman Cain's political career began in 1993, when he actively opposed Hillarycare from his position as president of the Restaurant Association. Housing Secretary Jack Kemp famously went to Nebraska to consult with him, and the Clintons publicly blamed him for turning public opinion against him. In 1996 he had a position in the Dole campaign. He ran for president in 2000 before endorsing George Bush. He ran for Georgia Senator in 2004, and lost the primary, because voters felt that he was too moderate.
I am a fan of Herman Cain. He was my candidate, too, but he lost me with his embarrassing answer to the Libya question. I couldn't care less about his personal life, but I believe that there is SOME truth behind them. Otherwise, he would gain much politically by exposing them for what they are. He is "of Washington," and has been for a long time, whether he likes it or not. At the moment, he is wisely playing his hand, looking for a role in the upcoming GOP administration. That role may be Commerce Secretary, if he can do enough for the eventual winner that it is worth the scandal risk. And even if he is 100% innocent, his history is now that he is DEFINITELY a scandal risk.