America is broken. You don't need a fistful of statistics to know this. Visit any city, and evidence of our shattered social compact will present itself. From Appalachia to the Rust Belt and down to rural Texas, the gap between the wealthiest and the poorest stretches to unimaginable chasms. Whether the cause of this inequality is systemic injustice, the entrenchment of racism in our culture, the long war on drugs, or immigration polices, it endangers...