Harvard was also the place where Schumer first saw left-wing antisemitism in action — using the cloak of anti-Zionism, as it often does today. At a 1970 campus speech by the Israeli foreign minister, Abba Eban, students in the gallery unfurled a banner that read, Fight Zionist Imperialism. Schumer’s book recalls Eban’s reply:

“I am talking to you up there in the gallery,” Eban said. “Every time a people get their statehood, you applaud it. There’s only one people, when they gain…