Editor’s note: Wendy Pearlman is a professor of political science and interim director of the Middle East and North Africa Studies Program at Northwestern University. The views expressed in this commentary are her own. Read more opinion at CNN. CNN — The aftermath of last week’s congressional hearing on antisemitism with presidents from three elite universities saw the resignation this week of University of Pennsylvania’s Liz Magill. Although the others, Harvard’s Claudine Gay and Massachusetts Institute of Technology’s Sally Kornbluth, have survived calls for their ousters, the outcry continues. Wendy Pearlman Maia Rosenfeld I’ve been paying close attention to what’s...