Deborah Lipstadt is a well-known scholar of modern Jewish history, antisemitism, and Holocaust denial. She has written many books. In the 1990s, she was involved in a famous trial against David Irving, the notorious English Holocaust-denier. (She won.) The case was depicted in a 2016 movie, “Denial,” in which Prof. Lipstadt was portrayed by Rachel Weisz. Today, Prof. Lipstadt works in the State Department: as the U.S. special envoy for monitoring and combating antisemitism. She has a lot to say, as you can imagine—very important things to say.