"I feel quite confident we will get there," he says"We're applying a whole host of tools, diplomatic, economic, military tools, to ensure that we get the best outcome for the American people," he saysSome progress made in Iran talks over the last few days, he saysUS expects the same amount of oil and gas coming out of the Gulf as before the conflict and "that is what the Iranians have told us that they are going to do," he says