AP Photo/Jacquelyn Martin, File; AP Photo/Artie Walker Jr.
Matt Rourke/AP; Peter Zay/Anadolu via Getty Images
Chip Somodevilla and Joe Raedle/Getty Images
Joe Raedle/Getty Images
AP Photo/Alex Brandon
Nikki Haley didn't say if she'll stay in the race after Super Tuesday: 'I don't think too far ahead'
Allison Joyce/Getty Images
AP Photo/Sean Rayford
Evan Vucci/AP Photo