Acosta’s book, subtitled A Dangerous Time to Tell the Truth in America, will be published on 11 June. The Guardian obtained a copy.

True to the style of Washington political reporting often complained about by Trump, Acosta mostly uses unnamed sources, many of whom are said to have spoken over social drinks. They are often blunt in their assessment of their boss. A “senior White House official” tells Acosta: “The president’s insane.”