The Power List: MARY KAY HENRY


By Editors

International President, SEIU, 53

The leader of the Service Employees International Union is so legit that she was arrested last November, protesting with the Occupy movement as a gesture of solidarity. Henry emerged as a galvanizing figure in the fight for economic equality and -- heading the fastest-growing union in the U.S., with a whopping 2.1 million members -- stands to become an increasingly influential backer for Obama in the 2012 election.

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