This is a well documented survey, but not quite as clean as others from Gallup. By not having an "other candidate" option for the 2-candidate questions, this poll is probably tarnished somewhat by collecting responses from people who do not support either of the "front-runner" candidates. Does not provide evidence to support the choice of front-runners. Categorization of open-ended responses may be subjective. Point spread of open-ended question results due to margin of error makes many of them overlap.

The biggest problem with this is that it promotes binary thinking by arbitrary selection of two candidates very early in the process.

A good open-ended survey into the criteria Americans use in their selection process. Free access to this report may expire on 3/30. For results based on the total sample of national adults, one can say with 95% confidence that the maximum margin of sampling error is ±3 percentage points.