I don’t know what is in President Donald Trump’s head. No one does — except him. And that is by design. Revealing his strategy would forfeit leverage, eliminate surprise and weaken negotiations before they even begin. Strategic ambiguity is not confusion. It is strength. I spent more than 20 years working on many of Trump’s largest business deals and three years serving as Middle East envoy in the White House. I am often asked what I believe he is thinking about Iran. My phone has been ringing off the hook since Wednesday’s meeting between Trump and Israeli Prime Minister Benjamin Netanyahu.