Part 7/11:
Mark underscored Cheney's unmatched influence over U.S. intelligence from the mid-1970s through 2009. Starting as deputy chief of staff under President Gerald Ford, Cheney’s access to and consumption of classified information spanned decades. In his view, no other figure in American history had a longer or deeper engagement with intelligence products, shaping U.S. foreign policy and security decisions for over 30 years.