Donald Trump is drawing a huge following from voters angry about the direction of the country; they see the America they loved coming apart.

Their dismay can be attributed partly to a decade of economic enervation, poor job growth and a sense of precariousness afflicting the working class, which presidential aspirants detect and are trying in their different ways to address. Voters will forgive a great deal if their prospects seem bright. But they seethe over a wide array of cultural and political grievances if they feel financially threatened.