How will Trump cope without his home comforts?
"This is an enormously complex undertaking, there are so many things that will be challenging for Trump it's headspinning," said Daniel Benjamin, who travelled extensively on Air Force One as Bill Clinton's foreign policy speechwriter.
"The first thing is simply the pace. If you look at how Trump spends his days in the White House, it seems to be an enormous amount of time watching TV and not much else. But these trips are punishing, he will be meeting an enormous number of people and it requires tremendous energy and focus - not his strong suit."
The president's team has reportedly attempted to build downtime into his schedule wherever possible, and instructed foreign delegations that he prefers short presentations with lots of visual aids.
His short attention span is said to have already affected preparation for the trip. Aides threaded the president's own name through the paragraphs of a two-page briefing memo in order to hold the president's interest, the New York Times reported on Friday.
Article in full: www.bbc.co.uk/news/world-us-canada-39943948