David Brooks: How to actually make America great

This pivotal moment isn’t the result of four years of Donald Trump. It’s the culmination of 50 years of social decay.“The Upswing,” a remarkable new book by Robert D. Putnam and Shaylyn Romney Garrett, puts this situation in stark relief. A careful work of social science, the book looks at American life from about 1870 to today across a range of sectors that are usually analyzed in separate academic silos.The first important finding is that between the 1870s and the late