Tillerson, then Secretary of Defense James Mattis, and then Director of the National Economic Council, Gary Cohn, hoped at the meeting to explain to the president the importance of major US alliances for national security. They were concerned that Trump's proposals would threaten America's position in the world, the Post reported.
Using a lot of visual aids in an attempt to maintain Trump's interest, the three men informed the president about US deployments, bases and embassies around the world, and the value of trade agreements to increase America's national security, the Post reported.
"You are all losers. You don't know how to win anymore," the commander in chief told meeting attendees, according to the Post's quote from the book.
From there, the president's speech continued, with Trump telling the military authorities, "I would not go to war with you."
"You're a bunch of narcotics and babies," he told the room, according to the Post excerpt.
The book stated that those in the room were shocked and surprised by the president's remarks, some considered leaving the meeting and one worried: "What would our worst opponents think if they knew he said that?"
Attendees described Vice President Mike Pence, who was also at the meeting, as silent, "frozen as a statue" and "a wax museum guy" during Trump's attack, according to the book excerpt.
Tillerson, however, said, "Mr. President, you are totally wrong. None of this is true."
A senior official quoted in the book said of the briefing, "not only did it not have the intended effect, but it dug in its heels and pushed the spectrum further, further solidifying its views."