The men sported tuxedos, the women extravagant evening gowns. They crowded into Donald Trump’s Mar-a-Lago resort, unmasked and without any pretence at social distancing. After cocktails and a luxurious dinner, the partygoers danced in the new year to the live music of rapper Vanilla Ice and Beach Boy veterans. “We shouldn’t be caged in our homes,” said Amber Gitter, a local estate agent who attended. No government should “tell you that you have...