Graham: Longer It Takes to Destroy ISIS, Greater the Chance of Getting Hit Here

GRAHAM: "The Iraqi government and people are demanding that Mosul be liberated. Put yourself in the shoes of the defense minister in Iraq, who is a Sunni from Mosul. He wants his town liberated from ISIL. That's a need and a desire but the capacity doesn't exist. This Iraqi security force is basically a Shia army. That army has been basically fractured. And if you go into Mosul ill-prepared, you could have a war between the Iraqi security forces and Sunni tribes in Mosul, not just ISIL, unless we're in the mix. The way to fix this is to have a larger American ground component to make sure the Iraqi security forces have the capacity to win. The worst outcome is to take on ISIL in Mosul and lose."

BLITZER: "Because I have limited confidence in the Iraqi military, given their abhorrent behavior last year, when they simply laid down their U.S. weapons and ran away from Mosul."

GRAHAM: "Because the Iraqi security forces became a Shia army, and the Shia Iraqi security forces were not going to die in Sunni land, Mosul. So the army became sectarian. Not only is it numbers you have to generate. You have to get a functioning army that would be welcome by people in Mosul. It has to be a more Iraqi army, less of a Shia army. And we're a ways away from there. But there's no substitute for a significant American support element to be successful. And that's where I blame President Obama. He is trying to do this on the cheap."