Kimberly Cheatle is in the middle of testifying before the House Oversight Committee -- and right from the outset, she took full responsibility for the near-death of the ex-Prez ... saying the agency failed in its duty to protect DT.
'Most significant operational failure': US Secret Service chief on assassination attempt on Donald Trump
In the face of Republican claims that the Secret Service denied resources to protect Trump, she said security for the former..
DNA