White House spokeswoman Sarah Huckabee Sanders said on Fox News she hasn't spoken with Trump about filing any libel lawsuit.

Trump decried the quotes and stories in the book on Twitter as "frauds, a con on the public," adding that Defense Secretary Jim Mattis and chief of staff John Kelly had denied uttering quoted criticisms of the president in the book.

In the book, Trump blasted Giuliani after he appeared on Sunday talk shows to defend then-candidate Trump in the wake of the infamous "Access Hollywood" tape.

The book quotes Kelly as having doubts about Trump's mental faculties, declaring during one meeting, "We're in Crazytown". It also says he called Trump an "idiot," an account Kelly denied Tuesday.

The book says Trump's former lawyer in the Russia probe John Dowd doubted the president's ability to avoid perjuring himself should he be interviewed in special counsel Robert Mueller's investigation into Russian election interference and potential coordination with Trump's campaign.

Trump did not speak to Woodward until after the book's manuscript was completed.

Woodward tells Trump he had contacted multiple officials to attempt to interview Trump and was rebuffed.

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