Secret Service Director Kimberly Cheatle resigned after the catastrophic security breakdown during a Trump rally in Butler, Penn. But the assassination attempt was only the latest Secret Service disaster, and the agency’s problems won’t be solved by a simple change in leadership.

Guest: Abdallah Fayyad, policy correspondent at Vox.

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Podcast production by Elena Schwartz, Paige Osburn, Anna Phillips, Madeline Ducharme and Rob Gunther.

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