One more thing

The full text of Davies’s resignation letter to Cameron looks as though it was drafted by Brown’s men. References to how unprincipled Cameron is, and how only Brown provides the sort of leadership Britain needs etc. combine to maximise Cameron’s discomfort and play even harder to Brown’s benefit. Written by Charlie Whelan’s successor then. But for all that Davies plays this card, and for all that Blair will quote his letter tomorrow at PMQs, Cameron does have a riposte.

[Brown] was just incredibly imprudent… extraordinarily incompetent… extraordinarily naïve… desperately complacent.

Sounds a slightly different note, and makes Davies's billet doux sound rather insincere and toadying.