Republican South Carolina Gov. Nikki Haley announces her candidacy for a second term in August, with South Carolina Sen. Tim Scott (from left), Govs. Rick Perry of Texas, Scott Walker of Wisconsin, and Bobby Jindal of Louisiana. Richard Shiro/AP hide caption

itoggle caption Richard Shiro/AP

Georgia Gov. Nathan Deal (left) and Iowa Gov. Terry Branstad, both Republicans, made a watchdog group's list of bad governors that has a very disproportionate GOP skew. Ronda Churchill/AP hide caption

itoggle caption Ronda Churchill/AP