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Koch brother: I’m a social liberal

Despite giving tens of millions of dollars to socially conservative groups, David Koch says he's a "social liberal."

Businessman David Koch arrives at the Metropolitan Museum of Art Costume Institute Gala Benefit celebrating the opening of "Charles James: Beyond Fashion" in Upper Manhattan on May 5, 2014. (Carlo Allegri/Reuters)
Businessman David Koch arrives at the Metropolitan Museum of Art Costume Institute Gala Benefit celebrating the opening of "Charles James: Beyond Fashion" in Upper Manhattan on May 5, 2014.REUTERS

Irin Carmon