Laurin Manning

Digital and communications strategist based in Charleston, SC

In a twist that could only happen in the alternate universe of South Carolina politics, the 2009 scandal that ended Sanford's marriage and torpedoed his 2012 presidential aspirations has served as a key prong of his comeback strategy.

Rob Richie

Executive director, FairVote

Now that Saturday has passed? Forget it. South Carolina will be lucky to see a presidential candidate in the next four years. The state and its voters effectively don't matter now they have made their choice.

Christopher Lamb

Professor of Journalism, University of Indiana-Indianapolis

Former Massachusetts Gov. Mitt Romney, who just won the New Hampshire primary, needs to keep in mind what happened to McCain in South Carolina or else he will find himself dazed and confused, and talking out of both sides of his mouth. Again.