A president steeped in constitutional lore might have been offended by claims he’s acting as a king. But Donald Trump and his entourage responded with mockery to weekend “No Kings” protests by millions of Americans — embracing the narrative in a way that explains his growing hubris and belief that he has unchecked power. The president and Vice President JD Vance this weekend both posted AI memes to social media depicting Trump in a crown. The one Trump shared was a mocked-up vision of the president flying a fighter jet emblazoned with “KING TRUMP” appearing to dump raw sewage on...