National/Federal 2020 Presidential Polls Suffered Worst Performance in Decades, Report Says MSN – Dan Balz (Washington Post) | Published: 7/18/2021 Public opinion polls in the 2020 presidential election suffered from errors of “unusual magnitude,” the highest in 40 years for surveys estimating the national popular vote and in at least 20 years for state-level polls, according to a study. [read post]