Polarization of House Districts

Ronald Brownstein and Jamie Boschma write at National Journal:

The new Congress convenes as a House divided, with Democrats and Republicans representing districts marked by towering contrasts along lines of race, education, and age, a Next America analysis shows.

Using census data, the analysis found that Republicans have consolidated a commanding advantage in districts where whites exceed their share of the national population—especially in those places where fewer whites than the national average hold at least a four-year college degree.

House Democrats, meanwhile, remain competitive in districts with larger than average numbers of college-educated whites and still control most districts where minorities exceed their share of the national population.