ORC International conducted a survey of 2009 Iowa adults between Oct 29 and Nov 4, 2015. Respondents were contacted by either Cellphone or Landline and instructed by a live operator. The results of this poll were released on Nov 6, 2015.
The poll was sponsored by CNN News.
Results were provided for the only publicly acknowledged question.
Question 5 | PreferenceView Matchup
If the Democratic presidential caucus in Iowa were held today, please tell me which of the following
people you would be most likely to support? Hillary Clinton, Martin O'Malley, Bernie Sanders
This question was presented to 498 likely voters from Iowa who were contacted in some undisclosed fashion. The margin of sampling error is ± 4.5%.
The question wording was provided by ORC International and CNN News.