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Topic: 501(c)4

David Koch (Reuters/Brendan Mcdermid)

Reid slams Koch brothers

Elias Isquith
(ABC News)

Alex Seitz-Wald
(<a href="http://www.shutterstock.com/gallery-81193p1.html?cr=00&pl=edit-00">Cheryl Casey</a> / <a href="http://www.shutterstock.com/?cr=00&pl=edit-00">Shutterstock.com</a>)

Alex Seitz-Wald