Defense Secretary Pete Hegseth tried his hand at President Donald Trump’s favorite stagecraft — toss out a sharp, insulting joke, let the room laugh and keep the spotlight. But the script didn’t work this time. The remark landed awkwardly, the room didn’t follow his lead, and what Hegseth did moments later only made the moment worse — setting off a fresh wave of backlash online. The exchange unfolded during the “Shield of the Americas Summit” in Doral, Florida, where Trump and top administration officials gathered with Latin American leaders at the president’s resort to promote a new Western Hemisphere security...