High Quality Content by WIKIPEDIA articles! Alan Kooi Simpson (born September 2, 1931) is an American politician who served from 1979 to 1997 as a United States Senator from Wyoming as a member of the Republican Party. His father, Milward L. Simpson, was also a member of the U.S. Senate from Wyoming (1962–1967) and a former Governor of Wyoming (1955–1959) as well. Simpson was appointed in 2010 to co-chair President Barack Obama`s National Commission on Fiscal Responsibility and Reform with co-chair Erskine Bowles.