What we know about person detained in what FBI calls an assassination attempt on Trump

CNN's John Miller reports on the person in custody in connection with what the FBI is calling an apparent attempted assassination of former President Donald Trump. Former Secret Service agent Jonathan Wackrow weighs in on the methods in securing a golf course area from threats, and CNN senior national security analyst Juliette Kayyem weighs in on the challenges of setting up security perimeters when people are targets. #CNN #News