Obama's run as first lady has not come without stumbles -- her summer vacation at a ritzy resort in Spain in the middle of a recession was a public relations disaster -- like many of her predecessors she has been able to win accolades without suffering from any of the baggage of being commander in chief.

CNN: STORY HIGHLIGHTS

"The payoff for cheating, whether it's cheating on a college SAT test or cheating on your wife or cheating in athletic competition, is you'll win and get all the proceeds and accolades that go with the championship, " Walsh said.

CNN: Cheating arises from desires, incentives, pressures