Thursday night’s Log Cabin Republicans’ “Spirit of Lincoln” gala in the main ballroom of Donald Trump’s Mar-a-Lago beachfront club was a joyous celebration of gay rights. | Steve Helber/AP Photo PALM BEACH, Fla. — Hundreds of guests in tuxedos of all styles — sequined, quilted, velvet — and colorful gowns sipped on Trump-branded champagne and martinis. Between courses of steak and bite-sized Key lime pie, they danced to “YMCA” and “Macho Man,” the disco anthems at Trump rallies. Thursday night’s Log Cabin Republicans’ “Spirit of Lincoln” gala in the main ballroom of Donald Trump’s Mar-a-Lago beachfront club was a joyous...