Three makes a trend, as journalists say, and by that standard, America faces a disturbing trend in its civic life: Weirdos keep trying to kill the president. The trend-making number three was Cole Tomas Allen of California. Strapped up with guns and knives, Allen bum-rushed some metal detectors last week at the Washington Hilton, where President Donald Trump, for the first time as president, was attending the annual White House Correspondents’ Dinner. Ryan Wesley Routh, a career criminal and serial fabulist from North Carolina, was the number-two weirdo. In September 2024, Routh was found armed with a semiautomatic rifle and...