Shipping containers at the Port of Los Angeles. Unions are stepping up their efforts to thwart White House plans for passing foreign trade deals on a "fast track" through Congress. Nick Ut/AP hide caption

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An employee at the American Disposables Inc. factory works on the assembly line in October 2009 in Ware, Mass. The state has seen rapidly expanding income disparity in the past 50 years as highly educated tech and financial workers have seen big gains and inflation-adjusted income has shrunk for the poorest residents. Spencer Platt/Getty Images hide caption

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Construction workers in Washington, D.C., in December. The latest jobs report will further drive the "misery index" to its lowest level in more than half a century. But economists say meager wages and big debts are still problems. Paul J. Richards/AFP/Getty Images hide caption

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Greek Prime Minister Alexis Tsipras addresses lawmakers at the Parliament in Athens on Tuesday. Greece is in talks with European finance ministers over its debt. Simela Pantzartzi/EPA/Landov hide caption

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A builder works on the construction of new homes in Belmar, N.J. Increased hiring and a boost in consumer confidence are expected to lift the housing market this year. Mel Evans/AP hide caption

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Target shoppers Kelly Foley (from left), Debbie Winslow and Ann Rich use a smartphone to look at a competitor's prices while shopping shortly after midnight on Black Friday, in South Portland, Maine. Robert F. Bukaty/AP hide caption

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