She should return to her office and start typing her resignation letter immediately. Assuming this was not set up as an assassination, such incompetence on so many different levels cannot be tolerated. It is hard to believe the level of incompetence that day. Unbelievable.
She should return to her office with security. Take her personal things, and be escorted out the door.
Future USSS Directors should be made to share the stage with whoever they are charged with protecting.