U.S. fast food workers fighting for better wages enlisted students, healthcare workers and racial justice activists to swell the ranks of rallies set for Wednesday in 230 cities. Fast-food workers will walk off the job and be joined at protests by students from 200 colleges and activists from the Black Lives Matter movement, which protests police brutality, they said. The campaign by low-wage workers for higher pay has been building for several years as they protest that the U.S. federal minimum wage of $7.25 an hour is not enough to lift them from poverty.