Romney's plan ties U.S. trade policy to development in foreign nations by identifying barriers to trade and investment in developing countries.

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The Trans-Pacific Partnership was first embraced in the United States by the State Department as a potential tool of foreign policy, and not by the U.S. Trade Representative as a possible trade initiative.

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In a statement Tuesday evening, the EU's trade commissioner, Karel De Gucht, and the bloc's foreign-policy chief, Catherine Ashton, said they were "very concerned" about labor conditions in Bangladesh.

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Mr Weld's world-view, on the other hand, exemplifies the other pillar of Republican foreign policy: free trade.

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