The security failures at Trump's rally have led to congressional and internal investigations, with the Department of Homeland Security Inspector General also launching a probe. The Secret Service Director faces criticism for the agency's shortcomings and her public response to the assassination attempt. The National Security Council had warned the Secret Service of a potential attack on Trump, prompting calls for greater precautions. At the Republican National Convention, a man carrying weapons was arrested, and another man was shot by police nearby. These incidents occurred amidst heightened security concerns, including an assassination threat targeting Trump revealed by intelligence officials.