Rep. Elise Stefanik has positioned herself in the months since Hamas attacked Israel on Oct. 7 as a champion in the fight against antisemitism. After going viral for asking university presidents whether calling for genocide against Jewish students was against their codes of conduct last December (an exchange her office helpfully packaged), the Republican from New York was hailed even by some liberal Jews as an ally. Since then, she has questioned more university presidents and leaders of public schools on antisemitism. Per Politico, she “raked in more than $7 million during the first quarter of the year, fueled by...