Author Michael Wolff has hit back at claims his book about US President Donald Trump's first year in office stretches the truth, saying it gave the clearest picture of the President's administration.
In an interview with ABC Radio, Wolff said his book was "all factual" and people should read it themselves to make up their own minds about it.
"You should read my book and see if you believe my account," he said.
Wolff's book Fire and Furyrocketed up bestseller lists, thanks in part to Trump's threat to sue over the publication of the insider story.
The book paints a picture of a semi-literate President who refuses to read and whose administration is in total disarray.
The book has also had serious consequences for its main source, former chief White House strategist Steve Bannon.
Wolff said no one was aware of how much impact the book was going to have before it was published, but he thinks Bannon was fully aware of what he was saying.
"I don't think anybody quite understood what this book was going to become," he said.
"Steve's title in the White House was chief strategist and Steve is nothing if not a strategist, so I assumed that he was strategising with regard to his view of Donald Trump and with regard to his own future."
While Bannon has apologised for calling Donald Trump jnr "treasonous", Wolff said Bannon did not apologise for other things he said about the President's son.
"I think it's pretty clear, and Steve disavowed none of this, that he thought Don jnr was a fool," Wolff said.
While he has been criticised for "sloppy" reporting, Wolff said he spent seven months in the White House to produce what he says is the best account of the President's first year.
"Nobody has returned this kind of picture with this kind of detail and clearly it is a picture of a place and of a man that has enormous resonance with lots and lots of people," he said.