“After every major presidential and midterm election, the Democratic data firm Catalist releases a comprehensive analysis of the composition and partisan leanings of the electorate. What distinguishes their analysis from election night exit polling is that it integrates data like vote history, Census data and Catalist’s own polling and modeling, which can give us a more fulsome view of who joined the electorate, and — as importantly — who dropped out of it...Vice President Kamala Harris’ 2024 loss was due to two key factors: She lost roughly two points of support among those who turned out in 2020, and new and infrequent voters failed to materialize for Democrats as they had in previous elections.‬ For the first time in Catalist’s dataset, both infrequent and new voters — groups that tend to be younger and more diverse than the electorate at large — fell below 50% support for a Democratic presidential candidate.”