Ian Bradley-Perrin (left) and fellow graduate student Olga Brudastova have been active in the campaign to unionize grad students who work as teaching and research assistants at Columbia University. Karen Matthews/AP hide caption

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Senate Health, Education, Labor, and Pensions Committee Chairman Lamar Alexander, R-Tenn., makes opening statements during a hearing to examine the National Labor Relations Board's joint employer decision last month. Al Drago/CQ Roll Call/Getty hide caption

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One Step Closer To Collective Bargaining, Some Temp Workers Unionize

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