On March 24, NBC/WSJ/MaristNBC/WSJ/Marist released the results of a new poll, in which respondents from Iowa were asked for whom they would vote if the parties' nominees were Hillary Clinton for the Democrats and Donald Trump for the Republicans.
Of those who answered the question, 48.0% said that they will vote for the Democrats, whereas 40.0% indicated that they would give their vote to the Republicans. The poll was carried out between January 2 and January 7. The sample size was 1470 registered voters. Results have a +/-2.6 percentage points error margin.
Other survey prognoses
Translating these results into two-party vote shares yields figures of 54.6% for Clinton and 45.5% for the Republican Trump. The Democrats did worse by 1.7 percentage points in comparison to the average results of the other polls in Iowa.