Wisconsin Gov. Scott Walker’s battles with his state’s unions have given him cachet with party conservatives. (Darren McCollester / Getty Images)
Sen. Marco Rubio of Florida presents a younger Latino face for the party. He impressed attendees with his depth on foreign policy at a January seminar. (Pablo Martinez Monsivais / Associated Press)
New Jersey Gov. Chris Christie continues to battle budget and legal troubles at home. (Charlie Neibergall / Associated Press)
Advertisement
Kentucky Sen. Rand Paul has worked nationally to build a nontraditional GOP campaign that would attract minorities, techies and young people. But reliable Republican voters tend to shy from his isolationist foreign policy views. (Jose Luis Magana / Associated Press)
Retired neurosurgeon Ben Carson has some tea party flair but little broad appeal. (Charlie Neibergall / Associated Press)
Louisiana Gov. Bobby Jindal is working tirelessly for evangelical and tea party credibility, with no evident success. (Nicholas Kamm / AFP/Getty Images)