Polls have outdated models that don’t accurately reflect the age of social media. Prior polling models don’t work with the changing environment. For example most the people they poll are in landlines and 65+ yrs old.
Let's not forget the media gives him dramatically less coverage, he receives less than proportional speaking time at debates, and it seems the amount of times the mess up facts about him is too high to be accidental, not to mention not even getting his picture correct and instead showing an image of some other asian.
I'm convinced that the outdated nature of polling entirely explains Biden's numbers. He appeals to clueless old people, and polling as practiced today over-samples that demographic.
