What voter groups did the Democratic Party lose in the last election cycle?

According to DNC Chair Ken Martin, many parts of the Democratic coalition abandoned the party in the last election. Specifically, the Democrats lost ground among Latino voters, working class households, young voters, and women voters. Martin notes that the only two demographic groups where Democrats overperformed were wealthy households and college-educated voters. He describes this trend as a "damning indictment" of the Democratic Party, acknowledging a significant disconnect within their traditional voter base that has never been greater.