TILLERSON: I have never questioned Trump's mental health

WASHINGTON (Reuters) - US Secretary of State Rex Tillerson has said he never doubted President Donald Trump's mental health, after a new book quoting White House officials said Trump acted like a child.

In the book "Fire and Fury: Inside the White House of Trump," written by journalist Michael Wolfe, Trump's staff at the White House believe his "mental abilities are flawed."

The book began marketing ahead of schedule in the past, despite the president's attempt to prevent publication.

Trump described the book as "boring and untrue," saying his author Wolf was "a failure."

He said the writer had been pushed by the media and others to offend him. "They have to try to win the elections," he wrote in his Twitter account.

Tillerson, who is believed to have described Trump stupidly last year, told CNN: "There is nothing to question his mental abilities." "Trump is a different model from the presidents of the past, and I think this is consistent and that's why the American people chose it," he said.

What about Trump's mental abilities?
Wolf said on Friday in a television interview that "100 percent of the workers" with Trump were skeptical about his ability to take the presidency.

In his book, Trump does not recognize his closest friends, and he repeats what he has already said for no reason.

White House officials describe Trump as "childish," because he "always needs someone to praise him, wants to be himself in the center of everything, and he is a man who does not read or listen to anyone else."

The president said he was not allowed to enter the White House and did not talk to him about the book.

But Wolf replied, "What would I do there if he did not want me to be there?" I spoke with the president and knew what I was doing.

He said he spoke with Trump three hours during the campaign and after his inauguration.

What did the book say?
Author Steve Bannon, former assistant to Trump, talks about a meeting between a Russian lawyer and Trump campaign officials, including the president's son. Bannon describes the meeting as a "betrayal".

Trump and his son deny having cooperated with the Russians to win the presidential election. But the book quotes Benon as saying, "It's going to be Trump's son on TV."

The Special Adviser, Robert Mueller, discusses the fact that this meeting was part of the investigation into the possibility of any cooperation between the officials of Trump campaign and Russia.

Other allegations included:

Trump's campaign team was shocked and horrified by his victory
His wife Melania was crying the sad night of the vote
His daughter Ivanka and her husband, Jared Kouchner, plan to be the first US president
Ivanka makes fun of her father's hairstyle
American media criticized some of the book and questioned its authenticity.