Volkswagen Group of America President and CEO Michael Horn testifies before the House Committee on Energy and Commerce Subcommittee on Oversight and Investigations on the Volkswagen emissions cheating scandal Thursday. Mandel Ngan/AFP/Getty Images hide caption

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Secretary Jack Lew stands in his office at the U.S. Department of the Treasury in Washington, D.C., on Wednesday. Ariel Zambelich/NPR hide caption

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United Auto Workers President Dennis Williams (from left), Ford Motor Co. President and CEO Mark Fields and Ford Executive Chairman William Clay Ford Jr. at the opening of contract negotiations last July in Detroit. Paul Sancya/AP hide caption

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Democratic presidential candidate Hillary Clinton announced Wednesday she opposes the Trans-Pacific Partnership trade deal that the White House strongly supports. Jim Cole/AP hide caption

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The city of Fort Bragg, Calif., has ordered restaurants to drastically reduce the amount of dishwashing by serving customers with disposable plates, cups and flatware. Emily Bogle/NPR hide caption

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Students sort grapes at the University of California, Davis research winery. The winery is experimenting with various methods to conserve water. The hope is that commercial wineries will follow suit. Courtesy of Karen L Block/UC Davis hide caption

itoggle caption Courtesy of Karen L Block/UC Davis