The DeSart & Holbrook model is included in the econometric models component of the combined PollyVote. According to the model, Clinton will collect 42.0% of the two-party vote share in Montana, whereas Trump will win 58.0%.
Putting the results in context
As a general rule, however, a good strategy is to not have too much faith in the results of single models, because they often contain large errors. At the very least, one should examine how a model's results compare to benchmark forecasts.
Results compared to the combined PollyVote prediction
The current PollyVote forecasts Trump to gain 56.6% of the two-party vote in Montana. PollyVote currently predicts Trump to gain 1.4 percentage points less compared to the results of the DeSart & Holbrook model.