Secret Service Director Kimberly Cheatle admitted that her agency was 'totally responsible' for failing to protect former President Donald Trump from an attempted assassination at a rally in Pennsylvania. The incident occurred on Saturday when local police spotted the shooter and raised the alarm, but the Secret Service failed to act. Secret Service agents had spotted the shooter 20 minutes prior to the incident. Cheatle has agreed to comply with a subpoena from the House Oversight Committee and will testify on Monday, July 22. The hearing aims to address the security lapses that led to the incident. Republicans are calling for Cheatle's resignation following the briefings on the shooting.