Columbia University’s antisemitism problem is even worse than we knew. Texts between Columbia deans, obtained and released by the House Education Committee, tell the tale — and show exactly how modern progressive thinking morphs into classic tropes of Jew-hatred. The deans were texting amid a May 31 alumni event about Jewish life on campus, the school’s effort to show it was truly sensitive to the crisis (and so still worthy of alums’ donations): The two-hour panel let speakers share stories about rising Jew hate in the wake of the Oct. 7 attack on Israel. But the texts from the hateful...