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I also have a long article up discussing the performance of the polls in recent elections, plus some changes to our methodology.

The topline conclusion is pretty important: Polls have been quite accurate in post-2016 elections.

53eig.ht/34HO1Nx
Polls were also largely unbiased in 2017-19 elections after 2 cycles they had a statistical bias toward Democrats, which should also be relieving.
I've got to head offline now, but there's lots more in here that polling geeks will find interesting, including some new techniques we're applying to detect pollster herding & punish the ratings for pollsters who herd. fivethirtyeight.com/features/the-s…
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