As the president promotes and excitedly tweets about a potential for peace between the two warring Koreas, he has displayed almost as much excitement over the recent overtures of one of America’s most acclaimed rappers. But it wasn’t just about Kanye this week. President Donald Trump and his allies once again plunged feet first into the pop-culture wars, riffing on Canadian singer-songwriter Shania Twain, YouTube celebs Diamond & Silk, and, of course, his bizarre bromance with Kanye West. It’s a sign that shows how vanishingly little has changed about Trump’s priorities and character ever since assuming the highest office in...