The presidents of Harvard, the Massachusetts Institute of Technology, and the University of Pennsylvania testified before a House committee on Tuesday about the state of antisemitism on their campuses. It did not go well for them. Representative Elise Stefanik, a New York Republican, asked the presidents whether “calling for the genocide of Jews” violated the schools’ codes of conduct or constituted “bullying or harassment.” None of them could answer with a yes. M.I.T.’s Sally Kornbluth said it could be, “if targeted at individuals, not making public statements.” Penn’s Elizabeth Magill called it “a context-dependent decision.” Harvard’s Claudine Gay agreed with...