Did the US Resolve its Fundamental Issue with a Nuclear Iran?

Walter Russell Mead appears on Fox Business to discuss his skepticism about whether the new Iran deal will solve the fundamental issues that led the United States to go to war with Iran in the first place. He outlines questions about the Iranian nuclear program and Tehran’s ability to rejuvenate its nuclear capabilities. He notes that the US has significantly damaged the regime and its military, but the nuclear issue is still at play.