Even in defeat, John McCain bequeathed an invaluable gift to his running mate, Sarah Palin: the national prominence that could allow her to compete for the GOP's presidential nomination in 2012.

While the Alaska governor avoided speculating on a future White House bid in recent interviews, she made it clear that she intended to remain an important player within the party.

If Palin does seek the presidency, her campaign will be far different from McCain's. Palin has sketched out a far more conservative vision for the GOP than McCain's -- one of American exceptionalism in which free-market capitalism and traditional social values remain paramount.

The contest to become the GOP presidential nominee will begin almost immediately.