The reviews, while noting some contradictions with past Trump stances, were mostly strong. Fox's Bret Baier said from Saudi Arabia: "[A]s you travel the world and you talk to world leaders, they think ... that this is a turning of the tide in the relationships of these countries — Saudi Arabia, the Gulf nations."

"I do think that you are seeing an effort by the White House ... to try to stick to the message of the day, and that's why we're not having a lot of open Q&As." (Trump hasn't yet had a presser on the trip.)

Can Trump sustain the presidential mien, for this week, and when he returns?

A key Republican emails: "Can this team and its leader learn from success? If they can, the turn to presidential-level issues can create a sense of calm and normalcy which would begin the rebuilding process with Rs in Congress."

"It means leaving Mueller to the various lawyers and focusing on results for the moderate-income voters that Trump uniquely inspires. Trump's presidency is about Trump, and that is vexing and tiresome to those struggling in a rapidly changing economy."

P.S. Per Bloomberg's Alan Levin, Margaret Talev and Jonathan Ferziger: Trump traveled from Riyadh to Tel Aviv aboard Air Force One today "in what appears to be an unprecedented direct flight by a U.S. president between those nations, which don't have diplomatic relations."

N.Y. Times Quote of the Day:"Love your shoes. Boy, those shoes. Man!" — President Trump, returning a compliment given by President Abdel Fattah el-Sisi of Egypt, who had told Trump, "You are a unique personality that is capable of doing the impossible."

Next up: What to expect during Trump's Israel leg.