The alleged gunman who opened fire on the White House Correspondents' Dinner Saturday was immediately subdued, acting Attorney General Todd Blanche said, praising law enforcement's quick response. The big picture: The suspect "barely breached the perimeter" of the event before being taken into custody, said Blanche. He called it "a massive security success story" during a Sunday appearance on CNN's State of the Union. "This was law enforcement doing exactly what they trained their whole lives to do," he said. Driving the news: The Secret Service faced criticism for multiple security failures when a gunman attempted to shoot President Trump during a campaign stop in Butler, Pa., in 2024. Just weeks after that attempt, another man tried to assassinate Trump at his Florida golf course.…