Hamburg, Germany — WE Germans can never escape the trauma of our recent history. That has rarely been clearer than today, as we look around our Continent and across the Atlantic. There are almost too many differences to mention between what happened in the 1930s over here and what is going on today. And it goes without saying that Donald J. Trump and Austria’s Norbert Hofer are not Adolf Hitler. Still, Germany’s slide into a popular embrace of authoritarianism in the 1930s offers a frame for understanding how liberal democracies can suddenly turn toward anti-liberalism. Setting aside debate about whether...
