-Voters in South Carolina continue to be closely divided in their feelings about Nikki Haley, with 41% approving and 43% disapproving of her. She's proving to have limited appeal to Democrats (an 18/71 spread), and independents split against her as well by a 35/43 margin. She retains pretty strong support from Republicans though at a 62/20 spread so certainly her support would be helpful if she decided to endorse a GOP Presidential candidate.
Although Haley might not be very popular, voters in the state don't regret having cast their ballots for her last year. If they could do it over again 49% say they'd support Haley to 43% who would go with her Democratic opponent Vincent Sheheen. Those numbers are pretty similar to the actual outcome last year. In that sense Haley's doing a lot better than many of her first term Republican colleagues in the country who voters already wish that they could push out of office.
-Lindsey Graham has seemingly tried to act more like a Republican recently and his poll numbers are reflecting that. With GOP voters he's at a 53/32 approval spread, better than we've seen for him in a good while. And with Democrats he's at a 25/50 breakdown, worse than we've seen for him in a good while. Overall Graham's at 41/39. These numbers have to be seen as good news for him. Even if his Democratic support isn't what it has been in the past it' s still enough that he should never have to worry about losing a general election. That means the primary is his problem and his improving numbers with the base are good news on that front.