Republicans were once more likely to have college degrees than Democrats, Hopkins says. But over the past decade, many on the right have come to believe that the value of college is declining. In 2010, 58 percent of right-leaning Americans believed colleges and universities had a positive impact on the country, according to Pew Research Center. Seven years later, that percentage had dropped to 36. “When conservatives accuse academia of being dominated by liberals, they’re not wrong,” says David Hopkins, a political scientist at Boston College. Consider the results of a survey that The Harvard Crimson, the student newspaper, conducted...