See the full list of endorsements over at SC Politics Today.
Based on a random sample, it seems to help if you have a "conservationist" last name.
“a coward hiding behind a slippery keyboard...”
- Karen Iacovelli, SC Club for Growth
“morally reprehensible and well beyond the bounds of acceptable civil discourse”
- Joshua Gross, SC Club for Growth
“a certain opponent of our efforts hit a new low this week”
-'South Carolinians' for Responsible Government