Siddiqui, 70, has spent his career working on agriculture issues. Since being named to USTR in 2010 as lead negotiator on agricultural trade, he has brokered a deal that settled a dispute about subsidized American cotton exports to Brazil and has led negotiations that allowed the United States to resume exporting poultry to Russia. This year, he expects to be busy with major trade frameworks such as the Trans-Pacific Partnership and the Transatlantic Trade and Investment Partnership. "This administration's effort, and mine being part of it as the chief agriculture negotiator, is not only negotiating new trade agreements like TPP, but also how do we level the playing field in terms of removing those barriers that exist," he said. Before joining USTR, Siddiqui was a vice president at the agriculture-trade group CropLife America, where he worked on international-trade and regulatory issues related to crop-protection chemicals that caused some organic and environmental groups to oppose his nomination. Earlier, he was a top adviser on agricultural-trade issues in the Clinton administration at the Agriculture Department and spent 28 years with the California Department of Food and Agriculture. Siddiqui was born in Haldwani, India, but he considers McLean, Va., his hometown. He holds a master's and a Ph.D. in plant pathology from the University of Illinois (Champaign-Urbana) and an undergraduate degree from Uttar Pradesh Agricultural University in Pantnagar, India.