A political movement that brings together—even if temporarily—Bernie Sanders supporters and businesspeople, evangelicals and secular feminists, and small-town Republicans and urban Black Lives Matter supporters, will open channels of communication across the vast chasm that has emerged between our country’s two main partisan camps. And it might help foster more crosscutting allegiances in a society that has too few of them. Where a society’s political divisions are crosscutting, we line up on different sides of issues with different people at different times.
