Acting Secret Service director testifies before Senate about Trump rally security
Secret Service director takes responsibility for security breach at Trump's Pennsylvania rally
Acting Head of the Secret Service blames his agency in Trump's assassination attempt
Secret Service director grilled on failure to secure roof at Trump rally
Secret Service spotted Trump rally shooter on roof 20 minutes before gunfire erupted
Secret Service spotted Trump rally shooter on roof 20 minutes before gunfire erupted
DHS Inspector General probes Secret Service over Trump rally shooting
Former senior Secret Service agent discusses response to Trump rally incident
Trump rally shooter used AR-15-style rifle, Secret Service says
Secret Service rushes Trump off stage at Pennsylvania rally
