 Senator Johnson, a senior member of the Senate Homeland Security Committee, received an unclassified briefing on Wednesday. During the discussion, a fellow senator asked when the Secret Service first learned of a possible threat at the rally. We found out it was more than 60 minutes before the shots were fired. That was before President Trump ever took the stage. After attending the briefing, the Wisconsin senator says he lost confidence in Secret Service Director Kimberly Cheatley. She certainly needs to be replaced from the standpoint of being in charge of security detail and protectees like President Trump.