The Jerome model is part of the econometric models component of the combined PollyVote forecast. According to the model, Clinton will garner 61.9% of the two-party vote share in Massachusetts, whereas Trump will win 38.1%. In comparison, on August 16 Trump was still predicted to win 0.0% of the vote.
Putting the results in context
As a general rule, however, you should not have too much faith in the results of single models, as they sometimes incorporate large errors. Rather, one should check how a model's results compare to benchmark forecasts.
The Jerome model compared with PollyVote's prediction
The latest PollyVote predicts Clinton to gain 64.0% of the two-party vote in Massachusetts. The results of the Jerome model for Clinton are thus 2.1 percentage points below the combined PollyVote in Massachusetts.