The highly anticipated release of The Des Moines Register Iowa Poll — considered one of the most important and most respected polls of the Primary season — was canceled Saturday night ahead of the Iowa caucuses. Over the years, The Des Moines Register Iowa Poll has been regarded as the Oracle that foretold the ultimate winner of the Democratic nomination. The 2016 Iowa Caucus results for the Democratic Party are still held under a cloak of suspicion for being rigged, even by The Des Moines Register, itself.

The official excuse for pulling the poll was because Pete Buttigieg's campaign complained that his name had been omitted by one of the poll interviewers.