On the same day that Islamic State terrorist Shamsud-Din Jabbar murdered 15 Americans by plowing a car into a crowd in New Orleans, thousands of Hamas and Hezbollah supporters, many decked out in Islamist garb, descended onto Times Square in Manhattan, chanting, “Globalize the intifada.” One of the organizers of the protest was Columbia University Apartheid Divest, a group often led by Syrian national Mahmoud Khalil. This week, Khalil, a former graduate student, was detained by Immigration and Customs Enforcement and now faces deportation, an enforcement of President Donald Trump’s executive orders “prohibiting anti-Semitism.” I am assured by Democrats that...