Alistair Campbell is one of the meanest, most bullying men who ever worked in modern politics - probably the most bullying.
His career since then has been him trying to whitewash himself, including his self-serving diaries.
He and Mandelson built New Labour by chucking out anyone that was inconvenient or unnecessary to them. They created the era of spin, and of making MPs and journalists answerable to them.
I will not hear a word of Campbell being all "Poor me! Who knew that Mandelson was such a wrong 'un!" from him. He's still spinning, but because a few years have gone by, people have forgotten, or don't know, what he was like.
Sweary Malcolm Tucker in 'The Thick Of It' was basically Campbell.