The people of Chicago are reviving an old tradition. Young people here, particularly blacks and Latinos, have re-learned a lesson about how real change is made and they are teaching the rest of us: We have power in the streets that we don't possess in the electoral arena. We can fight and we can win. And using this approach, on Friday night in the course of a few hours, several thousand Chicagoans did more to stop Trump bigotry than months of media blather and politicians' handwringing.
