WASHINGTON — Rep. Elise Stefanik’s new book about the rise of antisemitism and “anti-Americanism” at US universities has topped the Amazon bestseller list on the day of its publication, as the congresswoman announced a nationwide tour. “Poisoned Ivies,” out Tuesday, comes nearly three years after the New York Republican’s highly watched confrontation in a Capitol Hill hearing with Ivy League presidents and aims to tell the story of how that “reset the course of American higher education” in the