The sun went down and the volume went up. In the shadow of Chicago's high-rise skyline, downtown streets reverberated with protest. "Ain't no power like the power of the people, and the power of the people don't stop," they chanted. The president's plan to deploy troops in the city brought hundreds to the streets in opposition. They marched the full length of Michigan Avenue, flanked by a line of Chicago police officers. This is a city on edge, the federal government taking on the state, both