Tag Archives: University of Iowa

Iowa: Questioning the Polls

By Jim Ellis

Oct. 19, 2020 — Every political observer remembers that the cumulative polling community incorrectly predicted the Great Lakes states of Michigan, Pennsylvania, and Wisconsin in the 2016 Trump-Clinton presidential race, but further research finds additional significant misses in succeeding elections.

Political research reveals that two of those campaigns came in Iowa during the 2016 presidential race and the hotly contested governor’s race two years later. Today, we look at the Hawkeye State numbers with the goal of potentially ascertaining if there is a common polling pattern or consistent error factor.

In October, four polls have been released for the 2020 contest from a like number of different pollsters, two from left of center organizations while the other two are independent entities. The research organizations are Data for Progress, Civiqs for the Daily Kos Elections webpage, YouGov, and Quinnipiac University. Each has conducted one October Iowa survey.

In the presidential race, the polls yield former vice president Joe Biden an average lead of just over one percentage point. The cumulative ballot test mode then finds Des Moines real estate executive Theresa Greenfield (D) topping Sen. Joni Ernst (R) with a margin of four percentage points.

How do these numbers compare to recent polling vs. results electoral history, and is there an inherent Republican under-poll present?

In 2016, the Real Clear Politics polling average from Nov. 1-4 found then-candidate Donald Trump leading former Secretary of State Hillary Clinton by a mean average of three percentage points derived from three polls and three different polling firms. On Election Day, Nov. 4, 2016, Trump carried the state by a much larger 9.5-point margin.

Overall, 26 Iowa polls were released during the 2016 election cycle, with Trump recording a cumulative average lead of under half of one percentage point. According to the Real Clear Politics polling archives, 12 firms combined to reach the grand total, including Public Policy Polling (5 surveys), NBC News/Wall Street Journal/Marist College (5), Loras College (3), Quinnipiac University (3), Emerson College (2), and Selzer & Company for the Des Moines Register (2). The widest spread came from Loras College (Clinton plus-14) at the end of June. The Selzer & Company for the Des Moines Register poll produced the most accurate finding, Trump plus-7, at the very end of the election cycle (Nov. 1-4, 2016).

Continue reading

Buttigieg Pulls Ahead

By Jim Ellis

South Bend Mayor Pete Buttigieg

Nov. 14, 2019 — As more potential Democratic presidential candidates, like former New York City mayor, Michael Bloomberg, ex-Massachusetts Gov. Deval Patrick, and even Hillary Clinton begin to re-emerge on the campaign’s outer horizon, the party nomination contest is moving into a sustained state of flux.

It is obvious that the potentially returning candidates are flirting with a new effort because they don’t perceive any of the active contenders as being in position to win the nomination outright or who can successfully oppose President Trump in the general election.

Now, we see a new complicating factor as an Iowa poll released Tuesday finds South Bend Mayor Pete Buttigieg grasping the lead away from both former Vice President Joe Biden and Sen. Elizabeth Warren (D-MA).

According to the new Monmouth University survey (Nov. 7-11; 451 likely Iowa Democratic caucus attenders) Buttigieg claims first place with a 22 percent preference factor. Biden and Warren follow with 19 and 18 percent, respectively. Sen. Bernie Sanders (I-VT) secures fourth position with 13 percent.

The Monmouth poll is attracting headlines because it produces a new leader, and thus a new story line for a media horde always looking for a different narrative or angle. It may, however, be premature to suggest this one poll is the beginning of a new trend in the Democratic battle especially when it is the only survey drawing such a conclusion.

Two other pollsters ran surveys in a similar time frame and arrive at entirely different results. The Morning Consult large sample online survey (Nov. 4-10; 16,400 likely Iowa voters) projects a ballot test standing like we saw when the campaign was in its early stage: Biden 32 percent; Sanders 20 percent; Warren 19 percent; Buttigieg eight percent.

Continue reading