CPS security video shows Secret Service agents trying to enter Chicago’s Hamline School, offering glimpse of an interaction ...

(Donald J. Mihalek is an ABC News contributor, retired senior Secret Service agent and regional field training instructor who served during two presidential transitions. He was also a police ...

The Secret Service agents who drive the presidential limo go through rigorous training, as well as practicing for the parade. “So, that protective driving course, which is done out at our rally ...