I have a number of friends and customers who live in SC, several of them were not keen on Mace for Governor anyway, but Trump's endorsement will be pretty significant for sure.
Evette has a good rep and is a strong business-woman, she is also very much for securing elections and not allowing China to have any influence in her state.
Mace is a huge name and will have a mega bankroll but Evette does have a good chance to win.