Democratic Primaries

learning experience for her, including the massive failure of traditional prediction techniques and their failure to explain even afterward.

That Politico article also discusses this.

https://www.politico.com/news/magazine/2020/02/06/rachel-bitecofer-profile-election-forecasting-new-theory-108944

(Btw, my own explanation for the complete failure in this century of traditional polling to explain what voters on the left want includes a disbelief that political polling industry would be the ONLY one that wasn't infiltrated and corrupted by the RW power blocs. Corrupted media like the AP, NYT, CNN need seemingly honest data to support their subversive themes. Just asking questions designed to produce false pictures to sabotage every hopeful Democratic campaign in the nation would do it. It was the enormous widespread enthusiasm for Warren's big battles, which contradicted all the polling pictures, that made me realize the entire industry might not be incredibly and routinely incompetent.)