Historical clue formulations

• Mo ___, longtime Arizona politician — 2017-09-22
• Politico Mo — 2013-09-12
• One of a Western political family — 2010-07-01
• Mo who unsuccessfully ran for president in 1976 — 2004-10-31
• 1960's Interior Secretary Stewart — 2002-11-26
• Morris or Stewart of Arizona — 1998-02-04
• 60's Secretary of the Interior — 1997-01-26
• 60's Interior Secretary — 1996-08-02
• J.F.K.'s Interior Secretary — 1996-06-21