A controversial FP article 'Obama's pivot to Iran' and sub-titled 'Forget the Asia rebalancing. The president’s big legacy is likely to be seen as empowering Tehran':https://foreignpolicy.com/2015/01/29...pivot-to-iran/

I have read elsewhere, maybe here long ago, that Iran has consistently outplayed its many opponents diplomatically for years.

Here is a taster:
It is quite possible that, by the time Obama leaves office, no other country on Earth will have gained quite so much as Iran. Not all of this will be the doing of the United States, of course, and in fact some of it may prove to be the undoing of our interests in the long run.