The Crosstab model published an updated prediction of the election result. The model currently predicts a two-party vote share of 49.6% for Clinton, and 50.4% for Trump in Iowa. In comparison, on October 28, Clinton was predicted to achieve 49.7% of the vote.
Historically, Iowa has been a purple state, in which neither the GOP nor the Democrats have had overwhelming support to clinch its electoral college votes. This is the reason why forecasts here are of particular importance.
Putting the results in context
As any other method, models are subject to bias. Therefore, as a general rule, don't rely too much on the results of an individual econometric model. Rather, one should check how a model's results compare to benchmark forecasts.
The Crosstab model compared with PollyVote's forecast
The current PollyVote anticipates Trump to gain 49.2% of the two-party vote in Iowa. The results of the Crosstab model for Trump are thus 1.2 percentage points above the combined PollyVote in Iowa.