Republicans have been attacking elite universities for years. After a tense congressional hearing last week, many on the left are joining them.

For years, conservatives have struggled to persuade American voters that the left-wing tilt of higher education is not only wrong but dangerous. Universities and their students, they’ve argued, have been increasingly clenched by suffocating ideologies — political correctness in one decade, overweening “social justice” in another, “woke-ism” most recently — that shouldn’t be dismissed as academic fads or harmless zeal.

The validation they have sought seemed to finally arrive this fall, as campuses convulsed with protests against Israel’s military campaign in Gaza and hostile, sometimes violent, rhetoric toward Jews. It came to a head last week on Capitol Hill, as the presidents of three elite universities struggled to answer a question about whether “calling for the genocide of Jews” would violate school rules, and Republicans asserted that outbreaks of campus antisemitism were a symptom of the radical ideas they had long warned about. On Saturday, amid the fallout, one of those presidents, M. Elizabeth Magill of the University of Pennsylvania, resigned.