If the sample was chosen by concentrating only on the East and West coasts, such as New York and California, which are supposed to be pro-Democratic areas, and ignoring the percentage of the sample that refused to take the survey (which, according to the disclosure after the fact, was as high as 70%). Then this survey is so skewed that it's already completely distorted.

In psychology there is a problem of leading the waver, i.e., deliberately creating a so-called trend to imply and lead the waverers, who are themselves undecided, to follow the principle of herd mentality and run with it.

So this time, the so-called forecasts and surveys conducted by the US mainstream media no longer have much to do with statistics, but rather with psychological warfare.

Don't look at Hillary, who has a bunch of young people from so-called Ivy League schools working on big data analysis at her campaign headquarters every day. It's all theater there.