How Democrats clawed back support from five key voter groups in US midterms

Democrats had a sweeping victory during the 2026 US midterm elections, bringing focus to some of the key demographics where they made significant gains. Thereby, reversing several advances president Donald Trump made among traditionally Democratic voters in the 2024 presidential race, according to the AP Voter Poll.A survey of more than 100,000 voters across all 50 states found that voters under 30, Hispanic voters, Black voters, moderates and lower-income households shifted towards Democratic candidates, helping the party secure victories in several key races.Young voters recorded one of the sharpest swingsNearly 7 in 10 voters under 30 said they supported the Democratic candidate in their local House race, compared with roughly 3 in 10 who backed Republicans.

During the 2024 presidential elections the voters were equally divided between Kamala and Trump.First-time midterm voters, who tend to be younger, also largely favoured Democrats. However, voters under 30 accounted for only about one in 10 of the electorate, limiting the overall impact of the shift.