Democrats Gained These Voters in 2018, and Biden Needs to Keep Them Now

Two years ago, a flood of anti-Trump sentiment helped flip the House of Representatives blue, with Democratic candidates winning more votes than Republicans by nearly 10 percentage points nationwide — a record margin for a party that had been in the minority.

Because the 2018 election was largely seen as a referendum on President Trump, Democratic strategists are looking to carry those gains forward. Indeed, national and swing-state polls continue to show Joseph R. Biden Jr. with a steady lead — particularly in the suburban areas where Democrats made some of their biggest gains in the midterms.