ARNOLD SCHWARZENEGGER: AFFAIR WITH HOUSEKEEPER WAS ‘STUPIDEST THING I’VE DONE’

Arnold Schwarzenegger knows he made a major mistake.  In an interview with 60 Minutes airing September 30, the former Republican governor of California, 65, speaks candidly about his extramarital affair with housekeeper Mildred Baena that resulted in the birth of his fifth child, Joseph, 14. (The shocking news of Schwarzenegger's infidelity and secret son was not revealed until May 2011.)