ORC International conducted a survey of 2003 Iowa adults between Nov 28 and Dec 6, 2015. Respondents were contacted by either Cellphone or Landline and instructed by a live operator. The results of this poll were released on Dec 7, 2015.
The poll was sponsored by CNN News.
Results were provided for the only publicly acknowledged question.
Question 1 | 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 (RANDOM ORDER)
This question was presented to 442 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.