 Why did he flip? The answer is he didn't. They tried to push Biden out behind the scenes, and Biden, who is a narcissistic, sociopathic, kid-sniffing, bride-taking, apocalyptic-level loser who will destroy the United States, is not leaving. Him and his insane first lady will never give up power until they are forced out by voters, ever. So Clyburn now realizes he's stuck with this idiot.