There was, in the hours following Rush Limbaugh’s death Wednesday at the age of 70, a rush of praise and of judgment-passing about his career and what it meant in the world of politics. The human stories about Limbaugh tended to get lost if you didn’t look hard enough. Thankfully, country music superstar John Rich was there to remind us. In 2011, Rich was one of the final two contestants on “Celebrity Apprentice,” hosted by our future former president, Donald Trump. (In a contemporary piece that has aged like a chef’s kiss, Billboard noted that “Trump was presiding over ‘The...