What is going to have an effect on whether we get a deal done is, number one, is Iran prepared to show, to prove to the world that it is not developing a nuclear weapon, and can we verify that in an intrusive, consistent way. (..)

The other thing is going to be me being able to show not just the American people or the Israeli people but the world that, in fact, we have mechanisms in place that will prevent Iran from having a nuclear weapon. And that the deal that is made not only is verifiable, but it also makes it much less likely that Iran is able to break out than if we have no deal at all.