South Carolina restricts campaign contributions by a contractor to a candidate who participated in awarding the contract. South Carolina Code §8-13-1342 provides:
No person who has been awarded a contract with the State, a county, a municipality, or a political subdivision thereof, other than contracts awarded through competitive bidding practices, may make a contribution after the awarding of the contract or invest in a financial venture in which a public official has an interest if that official was in a position to act on the contract’s award. No public official or public employee may solicit campaign contributions or investments in exchange for the prior award of a contract or the promise of a contract with the State, a county, a municipality, or a political subdivision thereof.