EXCERPT:
MORELL: "So, I think Senator McCain is exactly right. These are linked. You cannot ultimately defeat ISIS without getting rid of Assad. He has no credibility with the largest percentage of his population, which are the Sunnis. He will never get it back. He will never get their support back. And as long as that’s the case, as long as he’s there, that will feed extremists, whether it’s — whether it’s this ISIS or whether it’s ISIS 2.0 down the road, Assad has to go. They are connected."