Paul David Tonko ( TONK-oh; born June 18, 1949) is an American politician serving as the U.S. representative for New York's 20th congressional district since 2013. He represented the 21st congressional district from 2009 to 2013. A member of the Democratic Party, Tonko has been called a staunch progressive. After the 2020 redistricting cycle and effective for the 118th Congress, the 20th district will include all of Albany County, Saratoga County and Schenectady County, as well as part of Rensselaer County. From 1983 to 2007, Tonko represented the 105th district in the New York State Assembly. He was appointed to serve as president and CEO of the New York State Energy Research and Development Authority from 2007 until his resignation in April 2008. Soon afterward, he declared his candidacy for Congress, and was elected in November 2008. Tonko is the ranking member of the House Energy and Commerce Subcommittee on Environment, Manufacturing, and Critical Materials in the 118th Congress. Since 2013, he has been the highest-ranking Democrat on the panel, which authorizes, oversees and investigates the Environmental Protection Agency (EPA).