Members of the Secret Service immediately rushed to shield former President Donald Trump yesterday after shots were fired at a Pennsylvania rally.

It was also Secret Service members who quickly returned fire and killed the shooter.

Still, the fact that a presidential candidate under the protection of the Secret Service was shot is raising questions about what oversights may have taken place regarding security around Trump. Lawmakers in Washington, D.C. are vowing there will be a congressional investigation.

For more analysis, Stef Manisero spoke with Anthony Cangelosi, a former Secret Service agent and a lecturer at the John Jay College of Criminal Justice.