Scott Huffmon, a political science professor and the executive director for the Center for Public Opinion and Policy Research at Winthrop University, predicted that the match up against Jaime Harrison (D), the former chair of the South Carolina Democratic Party and his top opponent, could be “potentially a single-digit race.”

“The probability is Graham is going to win, but he has not faced this well-known or this well-funded of a candidate probably since … when he first ran for the seat,” Huffmon said. “The question is how are Democrats going to turn out against Trump.”…

“Graham’s political skills should not be underestimated, and he’s clearly taking this race quite seriously, as he should. However, we also can’t overlook the considerable resume that Harrison also brings to the race, and even South Carolina Republicans admit he is a strong candidate,” the Cook Political Report wrote in its analysis.