I was very unimpressed with his democratic primary model, which he basically fine tuned every week when new data came in in order to get a result that was closer to his own preconceptions of the race.
I don't mean he allowed the model to update from new results, I mean the model would update, he'd be unhappy by its results so he'd change it so the outcome reflected his own biases. If you do that you produce a bunch of mathematical rationalizations for probability distributions that you invented from scratch.
Yeah, that’s what you’re supposed to do - use new evidence to update your beliefs.