 What will it take for you to change your mind? It will take him changing his mind. And if he were to change his mind, then I will change mine. Clyburn says he's spoken with Kamala Harris and said he'll help her any way he can. His influential endorsement of Biden ahead of South Carolina's pivotal 2020 primary helped revive Biden's campaign following several electoral losses, boosting him to victory in Clyburn's home state and building momentum through the Super Tuesday states that followed.