Things are going pretty well. The economy refuses to stop growing. The stock market continues to set records for soaring, not crashing. At long last, wages are creeping upward. President Trump isn’t pulling up stakes around the world and isolating the country, as many feared he would. Nor has he started a war.

But you’d never know it from the way 2020 Democratic presidential contenders are acting. In their rhetoric and policies, they’ve moved sharply to the left, as if the grounds for a revolution exist in America. Those grounds don’t exist, though Bernie Sanders claims the need for a “political revolution” has been building for nearly a half-century. More people are satisfied than not.