Philadelphia: US President Donald Trump is surrounded by "amateurs, grifters, weaklings, convicted and unconvicted felons," and also believes long neckties are slimming, according to former New Jersey Governor Chris Christie's blistering new book.

White House senior adviser Jared Kushner Credit:Evan Vucci

In Let Me Finish: Trump, the Kushners, Bannon, New Jersey, and the Power of In-Your-Face Politics, the ousted member of Trump's transition team lays into the president's associates.

He writes that Trump had a "revolving door of deeply flawed individuals ... who were hustled into jobs they were never suited for, sometimes seemingly without so much as a background check via Google or Wikipedia," according to excerpts published in Axios.

Remaining relatively unscathed in the latest White House kiss-and-tell is the president himself, according to the Guardian, which also obtained text in advance of the book's January 29 release.