The DeSart & Holbrook model released an updated prediction of the election outcome. It currently forecasts a major vote share of 60.3% for Clinton, and 39.7% for Trump in Washington. In comparison, on October 22, Clinton was predicted to collect only 58.1% of the vote.
Putting the results in context
As any other method, models are subject to bias. In general, you should not put too much trust in the results of a single econometric model. Rather than relying on results from single models, one should rely on combined models or, even better, the combined PollyVote forecast that draws upon different methods and data.
Comparison to the combined PollyVote
The current PollyVote foresees Clinton to gain 58.0% of the two-party vote in Washington. PollyVote currently predicts Clinton to gain 2.3 percentage points less compared to the results of the DeSart & Holbrook model.