Good question, Hugh.  
Now, here's another question I  also just posed elsewhere:
How  do you think Trump's big speech in Saudi Arabia will play out?
I wish there were already an article we could comment on posted on the RG news page-- but as there isn't, I'll just share a few thoughts here.
Overall I will say I think it was one of Trump's better efforts. Seemed to be mostly carefully written and delivered.
While it will inflame those who will hate Trump's 180 degree pivot on Islam, I think it is a step towards better relations and understanding with the Islamic world. To me, it moved the needle on Trump's Middle East policies from a 1 to a 4.
Still, I have concerns that this was all about security and not much about human rights or democracy, and that he's putting all the blame on Iran and the Shia, although Iranians just voted strongly to retain their moderate president Rouhani.
But still, for Trump this was a step forward.