Robert McDonald, former Secret Service agent and criminal justice professor at the University of New Haven in Connecticut, joined Newsline with Brigitte Quinn to discuss the resignation of the Secret Service director.

Photo: United States Secret Service Director Kimberly Cheatle testifies before the House Oversight and Accountability Committee during a hearing at the Rayburn House Office Building on July 22, 2024 in Washington, DC. The beleaguered leader of the United States Secret Service has vowed cooperation with all investigations into the agency following the attempted assassination of former President Donald Trump. (Photo by Kent Nishimura/Getty Images)

<p>Robert McDonald, former Secret Service agent and criminal justice professor at the University of New Haven in Connecticut, joined Newsline with Brigitte Quinn to discuss the resignation of the Secret Service director.</p>
<p>Photo: United States Secret Service Director Kimberly Cheatle testifies before the House Oversight and Accountability Committee during a hearing at the Rayburn House Office Building on July 22, 2024 in Washington, DC. The beleaguered leader of the United States Secret Service has vowed cooperation with all investigations into the agency following the attempted assassination of former President Donald Trump. (Photo by Kent Nishimura/Getty Images)</p>

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