“God has now spared my life,” Donald Trump told an arena full of supporters in suburban New York last night. He waited a beat while more than 15,000 members of the MAGA faithful began to hoot and applaud inside Nassau Coliseum on Long Island. Then he completed his thought: “Not once but twice.” The assassination attempts—one near-fatal shooting at a rally in Butler, Pennsylvania; one foiled attack at his golf course in Florida—have emboldened the former president. “These encounters with death have not broken my will,” Trump said. “They have really given me a much bigger and stronger mission.” Judging...