Sen. Chuck Grassley (R-Iowa) has raised serious concerns regarding security failures by the Secret Service in the lead-up to the July 13 shooting of former President Donald Trump during a rally in Butler, Pennsylvania. In a letter to Acting Secret Service Director Ronald Rowe, Grassley revealed that local law enforcement had repeatedly flagged security risks at the AGR complex where the shooter, Thomas Matthew Crooks, ultimately fired from. Despite these warnings, Secret Service agents assured police that they would manage security, leading to questions about the agency's oversight and accountability. Grassley's investigation has highlighted a lack of transparency from the Secret Service, which has denied multiple requests for information. The critical nature of these issues has been underscored by a subsequent assassination attempt on Trump, prompting further scrutiny of the Secret Service's protective measures. Grassley has demanded answers and documentation by September 24 to ensure such failures do not recur.