results of the much-anticipated final "the des moines register" poll were not released as scheduled on february 1 after a complaint by an interviewee that the name of pete buttigieg was omitted in one interview, which was reportedly attributed to human error. as the polling firm was unable to determine whether if the mistake was an isolated incident or not, a decision was made by pollster j. ann selzer to withhold the results of the poll altogether, marking the first time in 76 years that the final pre-caucus poll was not released by the "register".