On Human Rights Day last month, Donald Trump’s White House issued a statement in support of those suffering under the “yolk” of authoritarianism. Cue the inevitable puns about egg on White House faces. Amid a constant stream of Trumpian typos, this ranked among the best. It captured the indolence of an understaffed presidency that is barely going through the motions. Details are revealing. But you do not need to be a copy-editor to know that Trump cares little about human rights. The error captured the span of Trump’s persona — entertaining and chilling at the same time.

The same applies to Michael Wolff’s controversial book about Trump, Fire and Fury. The furore around it has already ended Trump’s alliance with Steve Bannon, his alt-right alter-ego, who is also Wolff’s biggest source. On Tuesday Bannon quit his job as head of Breitbart News, having lost the confidence of his financial backers. He is surely now regretting having spoken so candidly to the author. Wolff may or may not deserve his reputation as a chancer — a journalist who allegedly disrespects the meaning of “off the record” and embellishes reconstructed scenes. I do not know him personally. But having conducted my own off-the-record conversations with Bannon and others, I find his book to be largely credible.

He paints a White House in which virtually no one has any respect left for the president and where the staff are in “a state of queasy sheepishness, if not constant incredulity”. Both Reince Priebus, Trump’s former White House chief of staff, and Steven Mnuchin, his Treasury secretary, are quoted as calling the president an “idiot”. Gary Cohn, Trump’s chief economic adviser, reportedly describes him as “dumb as shit”. We already knew that Rex Tillerson, the secretary of state, thinks the president is a “f***ing moron”. For good measure, Rupert Murdoch, whose approval Trump craves, apparently called him a “f***ing idiot”. I doubt it needs spelling out but this is not a suitable book for family reading. Meanwhile, Ivanka Trump is “dumb as a brick”, according to Bannon, while Donald Trump Junior is “Fredo” — the low-IQ sibling in the movie The Godfather. But where is Don Corleone? In his bedroom on the phone complaining to his friends, it seems.