Dr. Thomas A. Coburn was a practicing physician in Oklahoma until 2015. He served as a US Representative of Oklahoma from 1995 to 2001. He honored his pledge to serve only three terms in the House before going back to private practice. Then in 2004 he ran for the US Senate, serving two terms (2005–2014). During his time in office, Dr. Coburn revealed $400 billion per year in waste fraud and duplication. Resigning from the Senate in December 2014 and retiring from the practice of medicine in 2015, Senator Coburn serves as senior adviser to the Convention of States Project (under the aegis of Citizens for Self Governance) and the Nick Ohnell fellow at the Manhattan Institute. He is the author of two books: Breach of Trust: How Washington Turns Outsiders Into Insiders and The Debt Bomb: A Bold Plan to Stop Washington from Bankrupting America.