Schieffer has been with CBS News since 1969, serving as the anchor on the Saturday edition of "CBS Evening News" for 20 years, from 1976 to 1996, as well as the Chief Washington Correspondent from 1982 until 2015, and moderator of the Sunday public affairs show, "Face the Nation", from 1991 until May 31, 2015. From March 10, 2005 to August 31, 2006, Schieffer was interim weekday anchor of "CBS Evening News", and was one of the primary substitutes for Katie Couric and Scott Pelley.