Why the polls were off in 2020 Updated 12:28 PM ET, Tue April 13, 2021 (CNN)President Joe Biden won the 2020 election as polls suggested he would. His victory, however, ended up being tighter nationally and in a number of swing states than expected. The question of why that happened has dogged pollsters since the election. On Tuesday, a number of Democratic pollsters (ALG Research, Garin-Hart-Yang Research Group, GBAO Strategies, Global Strategy Group and Normington Petts) put out a statement as to why they think their internal polls were off. It jibes with a lot of the analysis I and others have said publicly.