Britain’s Conservative prime minister Theresa May led her country in celebrating the centennial of the Balfour Declaration at a commemorative dinner in November, but Jeremy Corbyn, the notoriously hard-left and anti-Israel leader of the Labor party, declined to attend. Although Labor’s shadow foreign secretary did attend, she publicly asserted her disapproval of the occasion and said that the “most important way” for Britain to mark the anniversary would have been “to recognize Palestine.” Indeed, Simon Gordon writes, anti-Zionism has become an increasingly powerful force in British politics—especially, but not exclusively, on the left:

In the 1930s, a Republic Jewish judge, observing his coreligionists’ commitment to the Democratic party, quipped, in Yiddish, that Jews have three velt (worlds): di velt (this world), yene velt (the next world), and Roosevelt. Since then, Jewish devotion has attenuated somewhat, although Jews still overwhelming lean Democratic. Most American Jews, however, are unfamiliar with the terms “this world” or “the next world” in any language. Carefully examining a wealth of statistical data, Samuel J. Abrams and Jack Wertheimer argue that the sort of robust Jewish liberalism that characterized U.S. Jewry a few decades ago is in steep decline. Jews, they explain, are undergoing their own version of what political scientists call the “great sort,” whereby politics, religion, and place of residence increasingly align: