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Public polling failed because people inflated the – Source

During an invitation-only virtual event Thursday, Joe Biden’s campaign manager, Jen O’Malley Dillon, said public pollsters may have underestimated support for Donald Trump in part because respondents said they were more educated than they really were. That may have reduced the sample of nondegreed Trump supporters and increased the need for public pollsters to use statistical weighting to estimate the impact of those voters on election results.

Public polls consistently gave Biden a comfortable lead—sometimes in the double digits—over Trump during the 2020 campaign. O’Malley Dillon said repeatedly before the election that Biden’s internal pollsters were seeing a much closer race than public polling indicated.

Trump lost the election, but his campaign was very successful. It turned out 10 million more voters in 2020 than it did in 2016. It did so mainly by pulling more votes from the same demographic groups that supported him in 2016. Chief among those groups is white…

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