CNN Claims Americans Are Skeptical About Iran Deal Succeeding

CNN: “Americans Skeptical Iran Will Stick To Nuclear Deal.” Writing on CNN.com, CNN Polling Director Jennifer Agiesta said the network's latest poll found that “most Americans think Iran will violate the terms of the agreement” and “only about half wanted to see [it] approved.” The article didn't mention that public support has increased since the last poll until the 13th paragraph, the penultimate paragraph of the article:

President Barack Obama's big policy win this week -- preventing Congress from blocking the nuclear agreement with Iran -- may do little to improve his sagging approval ratings.

A new CNN/ORC poll finds 59% disapprove of the way Obama is handling the U.S. relationship with Iran, and about half would have preferred Congress reject the deal. Few believe Iran will abide by its terms, and a growing number consider the country a serious threat to the U.S.

Most Americans think Iran will ultimately violate the terms of the agreement, with 37% calling that extremely likely and 23% saying very likely. Just 10% think it's not at all likely that Iran would break the agreement. Republicans (83% likely) and independents (58% likely) are more apt to believe Iran would violate the agreement than are Democrats (44% likely). 

If Iran did violate the deal, 64% of all adults say the United States should respond with military action, including majorities across party lines (57% of Democrats, 64% of independents and 72% of Republicans). About a third, 34%, say the United States should not take military action if the deal is broken. 

[...] 

But there is no such optimism on the nuclear agreement with Iran, which only about half wanted to see approved. As the Democratic coalition that prevented congressional Republicans from blocking the agreement grew, so did public support for approving the deal. 

Overall, 47% in the poll said Congress should approve the deal, up from 41% saying so in August. The poll was in the field when the number of senators in support of the deal reached 41, enough to prevent the Senate from overriding a presidential veto of any bill rejecting the agreement. Still, 49% said they thought the deal ought to be rejected. [CNN.com, 9/13/15]

But The Poll Actually Showed An Increase In Public Support For The Iran Deal

CNN's Own Data Shows Support For Deal Has Increased, And Opposition Declined, Since July. CNN asked poll respondents if Congress should approve or reject the agreement with Iran and found 47 percent in favor of Congress approving the deal, an increase from the 41 percent who favored it in August, and 44 percent who felt that way in July, when the deal was signed. [CNN/ORC International Poll, 9/13/15]

Further, This Time CNN Didn't Provide Details Of The Deal, Which Previously Led More People To Support It

CNN's August Poll Provided Background Information And Found More Support For Deal. A CNN poll in August asked people if they supported the nuclear agreement with Iran, and also informed them about the components of the deal. After hearing the details, 50 percent said they support the deal - a greater proportion of support compared to CNN's latest poll which does not include the background information. 

Here's how CNN's August poll asked the question:

And here's how the question was asked in its September poll:

[CNN/ORC International Poll, August 13-16, 2015, CNN/ORC International Poll, 9/13/15]