It was hardly 24 hours after President Trump swore the presidential oath that Harvard University pledged to undertake its most significant effort yet to shield Jewish and Israeli students from antisemitic discrimination on campus. The agreement, which settled two lawsuits against the school, was hailed by the leading authority on civil rights in higher education, Kenneth Marcus, as a “watershed moment.” Call it the Trump effect.

The stipulation that makes the treaty so important is Harvard’s promise to adopt in its non-discrimination and anti-bullying policy the International Holocaust Remembrance Association’s definition of antisemitism. The definition, which is favored by the Jewish community, embraces the connection between anti-Zionism and antisemitism. It puts paid to the farce that denying the Jews the right to self-determination is not hostility to Jews.