Marist Institute for Public Opinion conducted a survey of 3040 Iowa adults between Jan 24 and Jan 26, 2016. Respondents were contacted by either Cellphone or Landline and instructed by a live operator. The results of this poll were released on Jan 28, 2016.
The poll was sponsored by NBC News and the Wall Street Journal.
Results were provided for the only publicly acknowledged question.
Question 7 | PreferenceView Matchup
If the 2016 Democratic presidential caucus in Iowa were held today, whomwould you support if the candidates are (including those who are undecidedyet leaning toward a candidate):
This question was presented to 426 likely voters from Iowa who were contacted in some undisclosed fashion. The margin of sampling error is ± 4.7%.
The question wording was provided by Marist Institute for Public Opinion, NBC News and the Wall Street Journal.