 This is Kim Cheadle, head of the U.S. Secret Service, saying, oh, the buck stops with me, but I'm not leaving. Listen. What was your reaction when you saw the events unfold on Saturday? Shock and then concern, obviously, for the former president. This is an event that should have never happened. Who is most responsible for this happening? What I would say is that the Secret Service is responsible for the protection of the former president. So the buck stops with you?