As part of a series of national protests against Arizona's SB 1070 law, more than 20,000 people marched here April 29 in Voces de la Frontera's annual May Day march.
Demonstators denounced corporate and Republican union busting and called for a stepped-up fight to defend union rights, Social Security, and Medicare.
Milwaukee May Day 2011 marks another important turning point for labor.
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Well over 100,000 rallied May 1 in more than 100 communities, a massive outpouring fueled by outrage over Arizona's viciously anti-immigrant SB 1070.