- U.S. Secretary of State John Kerry meets with Gulf state ministers Thursday
- Aaron Miller: U.S. allies in region fear Iran's regional aspirations
Aaron David Miller is a vice president and distinguished scholar at the Woodrow Wilson International Center for Scholars and author of "The End of Greatness: Why America Can't Have (and Doesn't Want) Another Great President." Miller was a Middle East negotiator in Democratic and Republican administrations. Follow him on Twitter @aarondmiller2. The opinions expressed in this commentary are his.
(CNN)John Kerry's visit to the Gulf this week is clearly aimed at trying to reassure key Arab states over U.S. policy toward Iran. But the secretary of state has a problem: If it has feathers, swims and quacks, then chances are it's a duck.