Ta-Nehisi Coates, “Why Precisely Is Bernie Sanders Against Reparations?,” The Atlantic:

… Our current sprawling megapolis of prisons was a bipartisan achievement. Obamacare was not. Sometimes the moral course lies within the politically possible, and sometimes the moral course lies outside of the politically possible. One of the great functions of radical candidates is to war against equivocators and opportunists who conflate these two things. Radicals expand the political imagination and, hopefully, prevent incrementalism from becoming a virtue.