Paul David Tonko is an American politician serving as the U.S. Representative for New York's 20th congressional district since 2013. A member of the Democratic Party, Tonko has focused on various issues including healthcare, renewable energy, and infrastructure. He has been an advocate for policies aimed at addressing climate change and improving public health. Tonko previously served in the New York State Assembly from 1983 to 2007, where he held the position of Assembly Majority Leader from 2005 to 2007.