Congressman Duncan isn’t well known outside of his East Tennessee district, but he’s been their representative for 30 years. In spite of being in the swamp for so long, he was named the most fiscally conservative Member of the U.S. House by the National Taxpayers Union in 2011 and is one of the few Members of Congress to receive the Citizens Against Government Waste Super Hero Award. Rep. Duncan enjoys a lifetime rating of 80 percent from Heritage, and a 2018 score of 93 percent. He has saved you $178,968,280,000, coming in third on our list.