Have you heard the anti-Jewish conspiracy theory about Maryland’s debate over congressional redistricting? Senate President Bill Ferguson blocked redrawing the maps because he’s bought and paid for by Jewish donors.Yes, you’re reading that correctly. During the recently concluded legislative session, emails landed in the president’s office making that antisemitic accusation. A decade ago, we might have dismissed these kinds of letters and emails as conspiracy foolishness to be ignored, tossed right onto the crazy pile. But today, after years of surging antisemitism in all parts of American society, we don’t have the luxury of disregarding any hatred against Jews. Whether...