Currently, Congress seems content to allow the FBI to investigate what happened in Butler, Pennsylvania, on July 13. This is the wrong approach. Because the government has an incentive to hide its own failures, when it comes to the attempt to assassinate Trump, especially given the U.S. Secret Service’s known failures, the must be an independent investigation. During my career, I worked several times with the United States Secret Service (“USSS”) on protective details when presidents and candidates came to our city. I believe the attempt to assassinate former President Trump was a horrific, epic failure, to say the least,...