The slippage is among nonwhite voters. But don’t despair: Union households, after stumbling in 2016, got back their Democratic mojo.

The prospect of a Democratic wave in the midterm elections this fall recalls the moment, nearly 50 years ago, when a group of young, liberal lawmakers swept into Congress on a mission to overturn the status quo. What can today's Democrats learn from the historic class of 1974?

The party has the money and machinery. Why is so little of it going toward Hispanic outreach?