The 2012 presidential election is now in the books, so who might the Republican Party turn to in four years?

John Roberts joined Martha MacCallum on America's Newsroom this morning to take an early look at a list of possible contenders. Many have speculated that New Jersey Gov. Chris Christie will run, while Sen. Marco Rubio (R-Fla.) is scheduled to take a trip to Iowa next week.

So what other names made the list?

Watch the full report: