Image by Getty Images via DaylifeWhen Sen. John McCain chose Alaska Gov. Sarah Palin as his running mate, many observers on both sides of America's cultural divide were surprised. The Palin pick smelled of pandering to the Christian extremist contingent and seemed to fly in the face of McCain's maverick credentials. Conservatives recognized Palin as one of their own but were dismayed that McCain did not select a more competent conservative. Numerous theories emerged about exactly what had happened in the McCain campaign. At least now we have our answer. In this brief video, Sen. McCain explains why he selected Sarah Palin.