During the recent Republican-led congressional hearings about arguably antisemitic slogans used by college students protesting Israel’s attacks on Gaza, some cynics questioned whether the party’s concern for Jewish Americans would persist in other situations. In the hearings’ context, after all, hate-speech allegations were leveled against other minority groups (campus radicals, American Muslims, Palestinian civilians) in a way that created conflicts within the Democratic Party while strengthening the GOP’s right-wing nationalist allies in the Israeli government. Was the Republican stand against antisemitism a matter of political opportunism rather than sincere commitment to the values of liberal pluralism? Initial returns, sadly, support...