3-4 point polling errors are relatively normal, definitely not shocking. That's why the best forecast models still gave Trump a nonzero chance of winning even t

3-4 point polling errors are relatively normal, definitely not shocking. That's why the best forecast models still gave Trump a nonzero chance of winning even though the polls showed Biden up by 8+ points. Polling is really hard. There are fundamental problems with it that are impossible to fully solve. It's frankly amazing that they get as close as they do.