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 pic.twitter.com/13oHKIpiEo

— Nate Silver (@NateSilver538) October 24, 2020