Recent First Amendment rulings by the Supreme Court could force courts and university administrators to take a closer look at controversial practices that have marginalized certain political views – often conservative ones – on campus. Free speech on campus has emerged as a hot debate in recent years, amid a rash of speakers being disinvited or violently protested. These issues are often handled in-house – but now, the courts could hold sway. “We should expect college campuses to truly be marketplaces of ideas where students learn to value free speech and open inquiry and take that lesson with them as...