Retrieved on December 7, 2015 at 6:28:34 PM CT
Iowa: CNN/ORC International Poll
Url: http://i2.cdn.turner.com/cnn/2015/images/12/07/iowa.poll.pdf
Retrieved on December 7, 2015 at 6:28:34 PM CT
Url: http://i2.cdn.turner.com/cnn/2015/images/12/07/iowa.poll.pdf