The summer Trump polling spurt has nonetheless been instructive in exposing a growing problem on the political right. All too many conservatives, including some magazine editors, have been willing to overlook his hucksterism as he’s risen in the polls. They pretend that he deserves respect because he’s giving voice to some deep disquiet or anger in the American electorate. But America has rarely lacked for demagogues willing to exploit public discontents. William Jennings Bryan won three Democratic presidential nominations running against eastern elites. In 1948 Henry Wallace ran as a Soviet sympathizer while Strom Thurmond won 39 electoral votes running...
