The Prince of Darkness appears in his element bad-mouthing colleagues and allies behind their back

LIVE UPDATES: Messages between ministers and aides published as part of the 'Mandelson files' show infighting and sniping abound within Labour.

MP David Davis calls this a "National Security Issue."

The Prince of Darkness appears in his element bad-mouthing colleagues and allies behind their back

Hundreds of documents showed ministers and officials sniping at each other over the fate of Keir Starmer's 'beleaguered' Government.

Devastating critiques carry more weight precisely because they're a year old and events have now caught up with them

Files shed light on how the Labour grandee juggled patrons and supplicants using flattery, fury and contempt for three decades

Messages included in the latest tranche of Mandelson documents show the disgraced former ambassador used a trackable tool while lobbying ministers for Labour's Oxford Chancellor…