Pollsters initially believed they had learned from past mistakes, but their efforts have still resulted in inaccurate predictions for the current political landscape, primarily due to educational polarization.
Despite adjustments made after 2016's polling errors, the statistical miscalculation only worsened in 2020, illustrating the difficulties pollsters face in accurately predicting elections.
Biden's leads in key battleground states like Wisconsin, Michigan, and Pennsylvania during the 2020 election were significantly overstated, leading to a narrow electoral outcome that caught many by surprise.
As of now, Harris holds a slight lead over Trump, but historical polling inaccuracies raise doubts about whether these numbers reflect the actual support and could jeopardize her campaign.
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