Mr. Trump accelerated the movement of working-class voters into the Republican Party, creating a GOP that now represents more middle- and lower-income Americans … He has reframed much of the Republican agenda to appeal to these voters, particularly on trade, immigration and foreign affairs, in many cases upending 40 years of GOP policy. In turn, the Democrats are increasingly the party of America’s wealthiest cities, post-industrial business leaders, and the “woke” professional class. This political transformation, however, means that U.S. college graduates have few friends in Washington, D.C., to protect their economic interests in a shifting economy. The WSJ provides...