Northwestern University President Michael Schill is scheduled to testify Thursday morning at a congressional hearing titled “Calling for Accountability: Stopping Antisemitic College Chaos,” as the elite Big Ten school and others across the country face mounting accusations of fostering climates that are hostile or discriminatory to Jews. Schill — who describes himself as a “proud Jew” raised with an enduring love for Israel — is slated to appear before lawmakers alongside the leaders of Rutgers University and the University of California at Los Angeles. A similar congressional hearing on antisemitism on college campuses in December spurred the resignations of several...