As potentially embarrassing statements from Arnold Schwarzenegger's past have come to light, his campaign has developed an unusual standard defense: He made it up. Confronted with Schwarzenegger's own words on drug use, his early business practices, women and his immigration status, campaign aides — and the candidate himself — have disavowed many of the comments he has made during the last 30 years. In doing so, they have said that Schwarzenegger either exaggerated or erred in dozens of interviews he gave to promote his career and even in his 1977 autobiography.