Interview: Ann Selzer stands by sampling method for primary polls

J. Ann Selzer has earned a reputation as “the best pollster in politics” through “old-school rigor” and not adjusting her data to fit guesses about the structure of the electorate. Des Moines-based Selzer & Co. is one of only five polling firms in the country currently rated A+ by FiveThirtyEight. Like many media pollsters, the firm uses a random digit dial method to find respondents for surveys about a primary or Iowa caucus. Most internal polls commissioned by campaigns draw the sample from a registered voter list, with an emphasis on past participants in either a Democratic or Republican nominating contest.

I sought comment from Selzer on her methodology because of Fred Hubbell’s and Cindy Axne’s unexpectedly large margins of victory in this year’s Iowa Democratic primary. In a telephone interview with Bleeding Heartland last week, Selzer explained why she will stick with her sampling method for future primary elections.

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2018 Iowa primary results: Early wins for Hubbell, Finkenauer, Axne

Good news for Iowa political junkies who value sleep: there’s no need for an all-nighter to follow this year’s primary results. In the most closely-watched races, it was clear less than an hour after polls closed that Fred Hubbell will be the Democratic nominee against Governor Kim Reynolds, Abby Finkenauer will face off against Representative Rod Blum in Iowa’s first Congressional district, and Cindy Axne will challenge Representative David Young in the third Congressional district.

I’ll update this post frequently throughout the evening as results are reported.

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