 Senator Joe Manchin, who initially had considered re-registering as a Democrat to run, just told CBS he will not. Two hours from now, Secret Service Director Kimberly Cheadle will testify at a House hearing in the security lapses in the Trump assassination attempt. Many Republican lawmakers want her to resign. Cheadle says she's happy to come here, saying in a statement, I look forward to the panel examining what happened and providing recommendations to help ensure it will never happen again.