American Research Group conducted a survey of 400 Iowa likely voters between Jan 21 and Jan 24, 2016. Respondents were contacted by either Cellphone or Landline and instructed by a live operator. The results of this poll were released on Jan 25, 2016.
Results were provided for the only publicly acknowledged question.
Question 1 | PreferenceView Matchup
If the 2016 Democratic presidential caucus were being held today between (names rotated) Hillary Clinton, Martin O'Malley, and Bernie Sanders, for whom would you vote?
This question was presented to 400 likely voters from Iowa who were contacted in some undisclosed fashion. The margin of sampling error is ± 5% at the 95% confidence level.
The question wording was provided by American Research Group.