The DeSart & Holbrook model is captured in the econometric models component of the combined PollyVote. The model currently forecasts a major vote share of 42.6% for Clinton, and 57.4% for Trump in Tennessee. In comparison, on October 22 Trump was still predicted to garner 57.7% of the vote.
Putting the results in context
As any other method, models are subject to bias. Hence, one should not focus too much on the results of a single econometric model. At least, one should check how a model's results compare to benchmark forecasts.
The DeSart & Holbrook model compared with PollyVote's forecast
The latest PollyVote expects Trump to gain 58.5% of the two-party vote in Tennessee. The results of the DeSart & Holbrook model for Trump are thus 1.1 percentage points below the combined PollyVote in Tennessee.