Nominations of Michael Punke, Islam Siddiqui, and Michael Mundaca : hearing before the Committee on Finance, United States Senate, One Hundred Eleventh Congress, first session, on the nominations of Michael Punke, to be Deputy U.S. Trade Representative, with the rank of ambassador; Islam Siddiqui, to be chief agricultural negotiator, Office of the U.S. Trade Representative with the rank of ambassador; and Michael Mundaca, to be Assistant Secretary of the Treasury for Tax Policy, November 4, 2009.