The DeSart model provided an updated forecast of the election result. According to the model, Clinton will obtain 50.6% of the two-party vote share in Iowa, whereas Trump will win 49.4%. In comparison, on August 16, Clinton was predicted to achieve only 49.4% of the vote.
Historically, Iowa has been a swing state, in which no single party has had overwhelming support to clinch that state's electoral college votes. This is the reason why forecasts here are of particular importance.
Putting the results in context
As a general rule, however, don't have too much faith in the results of single models, because they may contain large errors. At least, one should check how a model's results compare to benchmark forecasts.
Results compared to the combined PollyVote prediction
The latest PollyVote foresees Clinton to gain 50.3% of the two-party vote in Iowa. The results of the DeSart model for Clinton are thus 0.3 percentage points above the combined PollyVote in Iowa.