Washington (CNN) Polls in the final weeks of the 2020 election campaign were farther off the mark from the election results on average than polls in any election in decades, according to a new task force report released Monday . The average 2020 errors were high regardless of how a poll's interviews were conducted or how it selected people to interview. Being more precise would require in-depth study of those who chose not to participate in polls, a task pollsters are just beginning to undertake. None of these sources can definitively show what the difference is between the voters who took polls in 2020 and those who did not. So our weighting on 2016 Trump vote unfortunately had the effect that we had too many 2016 Trump voters who were not enthusiastic about him and too few who were enthusiastic about him."

Source: CNN July 19, 2021 10:52 UTC