An Overlooked Key to Democratic Victories: Diversity in the Suburbs

Suburbs look more like the nation’s cities—and are increasingly voting like cities

Democrats took control of the House by flipping seats in the nation’s suburbs, which have long been political battlegrounds. But those victories rested on more than just the votes of college-educated white voters, whose shift away from Donald Trump and the Republican Party has drawn wide attention.

People of color were also a large component of the Democrats’ victories in the suburbs—increasingly diverse communities that no longer fit the stereotype of racial homogeneity. They are more likely to live in the suburbs than in...