
Nate Silver @NateSilver538
Hey folks, our national polling average is now Biden +9.2, as compared with Biden +9.7 yesterday. What caused the change given that the national tracking polls were decent for Biden this AM? It's older polls dropping out of the average. https://t.co/cy51vc5isJ https://t.co/13oHKIpiEo — PolitiTweet.org