The Atlantic: “Control of the House of Representatives could teeter precariously for years as each party consolidates its dominance over mirror-image demographic strongholds. That’s the clearest conclusion of a new analysis of the demographic and economic characteristics of all 435 congressional districts, conducted by the Equity Research Institute at the University of Southern California in conjunction with The Atlantic. Based on census data, the analysis finds that Democrats now hold a commanding edge over the GOP in seats where the share of residents who are nonwhite, the share of white adults with a college degree, or both, are higher than the level in the nation overall. But Republicans hold a lopsided lead in the districts where the share of racial minorities and whites with at least a four-year college degree are both lower than the national level—and that is the largest single bloc of districts in the House…

Nearly three-fourths of House Democrats represent districts where the share of white adults with a college degree exceeds the national level of 36 percent. More than three-fourths of Republicans hold districts where the share of white college graduates trails the national level…”