John Kerry actually said...

If we believe that it would be useful to discuss counter-ISIL efforts with Iran, we may do that on the margins of the P5+1 talks, as we have...

While Iran has, in common with the emerging international consensus, a strong interest in seeing ISIL defeated, we remain deeply concerned a...

I do not think the American public, and I do not think Congress, will support the United States policing a region that will not police itsel...

The President absolutely, clearly, by almost any legal standard that I can imagine is not violating the Constitution.