Story highlights 56% of Americans want Congress to reject the Iran deal, according to the latest CNN/ORC poll

This comes as Americans are increasingly divided over the deal along partisan lines

Washington (CNN) A growing majority of Americans are turning against the nuclear deal with Iran and believe Congress should reject the deal brokered between the U.S., five other world powers and Iran.

As Congress inches closer to a vote to approve or disapprove of the deal, 56% of Americans now say they think Congress should reject the deal with Iran -- up from 52% less than a month ago -- according to the latest CNN/ORC poll released Thursday

And 6-in-10 Americans also disapprove of President Barack Obama's handling of the U.S. relationship with Iran, according to the poll.

The American public's growing disapproval of the Iran deal stems from an increasing partisan polarization over the deal with more Republicans opposing and more Democrats embracing the nuclear deal. And it comes amid a full-court press from Obama and his administration to sell the deal to the public and to members of Congress ahead of a key vote on the deal next month -- with Republicans knocking his efforts at every turn.

Read More