As such, Halper worked as an assistant to three Chiefs of Staff - Alexander Haig (until September 21, 1974), then Donald Rumsfeld (from September 21, 1974 to November 20, 1975), and then Dick Cheney (from November 20, 1975 to January 20, 1977). pic.twitter.com/cDqq0nO7k8

— The_War_Economy (@The_War_Economy) March 26, 2018