US Representative for the 6th district of Illinois. Sean earned a B.A. in Molecular Biology and Biochemistry from Middlebury College. He then worked for two years as a scientist at the Tufts School of Medicine in a laboratory investigating dietary impacts on colon and breast cancer. In 1998, he earned a Masters of Engineering Management and a M.S. in Biochemical Engineering from the Thayer School of Engineering at Dartmouth. His M.S. thesis was focused on the development of technologies to produce fuel-grade ethanol from cellulosic feedstocks and the techno-economic evaluation of various alternative ethanol, heat, and power generation technologies. From 1997 to 2000, Sean worked as a consultant in the energy practice of Arthur D. Little. In 2000, Sean became the president and CEO of Turbosteam Corporation, a manufacturer of custom-built combined heat and power plants. In 2007, Sean moved to Illinois to co-found Recycled Energy Development, LLC (“RED”), with a mission to profitably reduce greenhouse gas emissions through the recovery of otherwise wasted energy.