FILE - In this Aug. 30, 2013 file photo, David Koch speaks in Orlando, Fla. The Koch brothers and their chief lieutenants are warning of a rapidly shrinking window to push their agenda through Congress. No agenda items matter more to the conservative Koch network than the GOPs promise to overhaul the nations tax code and repeal and replace President Barack Obamas health care law. (AP Photo/Phelan M. Ebenhack, File)
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