US Secretary of State Rubio evaluates the diplomatic involvement with Iran:
"You have a number of countries that continue to engage with different ideas, but I wouldn't say we're on the verge of a breakthrough. The President will always prefer to resolve this and any problem diplomatically. Sometimes it's not possible, unfortunately, but if there's a chance to do it, we'll look into it.
Right now, it hasn't been very productive because the Iranian demands are simply not only unacceptable, but in some cases outrageous and ridiculous and downright unrealistic."