Ronald Ernest Paul, M.D. (born August 20, 1935 in Pittsburgh, Pennsylvania) is an American physician and Republican Congressman for the state of Texas. Paul is a member of the Liberty Caucus of Republican congressmen which aims to limit the size and scope of the federal government, and serves on the House Foreign Affairs Committee, the Joint Economic Committee, and the Committee on Financial Services, where he has been an outspoken critic of American foreign and monetary policy.