Calculating a margin of error would have been meaningless because the sample did not capture all segments of the population. The larger the sample size, the smaller the margin of error.

Hold your breath and make sure you vote, because the result is likely to be a squeaker.

The term "margin of sampling error" was regularly shortened to "margin of error" and used as a catch-all for any potential inaccuracy in the survey.

In the current election cycle, many media reports about polls are not including information about the margin of error.