Is he angry that he's been cut out of the loop?
Something must have triggered this craziness.
This sounds like a very useful question. While his resume is full of soft spots at prestigious nameplates, and he hasn't been a part of government for ages, this screed has the resonance of a guy on a barstool in midafternoon telling the barkeep, "I usedta BE somebuddy."
(Barkeep just keeps wiping that imaginary spot deep inside a waterglass, holding it up to the light and wiping it some more.