evidence: Law enforcement agents stand near the stage of a campaign rally for Republican presidential candidate former President Donald Trump on July 13, 2024 in Butler, Pennsylvania. According to Butler County District Attorney Richard Goldinger, the suspected gunman is dead after injuring former President Trump, killing one audience member and injuring at least one other. (Photo by Anna Moneymaker/Getty Images) WASHINGTON — Pennsylvania’s top police officer faced questions Tuesday from lawmakers who wanted details on how the U.S. Secret Service and state and local law enforcement communicated when a gunman attempted to assassinate former President Donald Trump, killed one rallygoer and injured two others in Butler, Pennsylvania. [...] "The security failures that allowed an assassination attempt on Donald Trump’s life are shocking," the House leaders said. "The task force will be empowered with subpoena authority and will move quickly to find the facts, ensure accountability, and make certain such failures never happen again."