An estimated 25,000 people fled from the key Iraqi city after ISIS fighters began their assault on the city center over the weekend.
McCain told Neil Cavuto that he's not surprised ISIS has gained control of Ramadi.
"I'm no longer surprised, but just so deeply disappointed," McCain stated. "This is a failure of a policy, which is not enough of everything."
He said that the U.S. should have done more to prevent this from happening.
Read the full story + video at FOXNews.com