Travel Pool Report No. 13 - guest book signing/sock sighting

The president entered the forum at 1:22 p.m. and greeted guests. He walked across the rectangular room to participate in a guest book signing.

"This was a little bit of an endurance test. ... could have done it 10 times over," he said, wrapping up the trip.

He sat and signed the guest book with his large signature.

He asked by Peter Alexander if he had a message for the people of UAE/Abu Dhabi.

"Just a message of unity. When you look at what we've just seen, it's great unity, great faith. They're incredible people with a tremendous leader. He's a friend of mine," Trump said

Co-pooler Michael Birnbaum observed that POTUS was sporting socks when in the mosque.

We are rolling to the airport as of 1:30 p.m.