The DeSart & Holbrook model is captured in the econometric models component of the combined PollyVote forecast. The model currently forecasts a major vote share of 62.2% for Clinton, and 37.8% for Trump in Illinois.
Putting the results in context
As any other method, models are subject to bias. As a result, don't have too much faith in the results of a single econometric model. At the very least, one should examine how a model's results compare to benchmark forecasts.
Results compared to the combined PollyVote prediction
The most recent PollyVote anticipates Clinton to gain 59.0% of the two-party vote in Illinois. PollyVote currently predicts Clinton to gain 3.2 percentage points less compared to the results of the DeSart & Holbrook model.