RON BROWNSTEIN: Demography Is Not Destiny For Democrats: Redistricting and GOP dominance among white voters have offset the growing racial diversity that was supposed to give Democrats an unbeatable edge.

Growing racial diversity is transforming a lengthening list of congressional districts, but not providing as much political benefit to House Democrats as many in both parties expected only a few years ago, a Next America analysis has found.

Districts high in racial diversity remain the last redoubt for the House Democrats’ depleted caucus: As Next America has reported, almost exactly two-thirds of the 188 Democratic House members in the new Congress represent districts where minorities exceed their national share of the population, 37.6 percent.

But Democrats have clearly failed to squeeze all the possible advantage from growing diversity, particularly as Republicans have consolidated their hold over districts where whites are more plentiful than they are nationally. While Democrats continue to dominate districts where minorities represent half or more of residents, the GOP remains doggedly competitive in seats where the minority population is either slightly above, or slightly below, its national average. In fact, in the new Congress, Republicans will hold a majority of the seats in which minorities represent at least 30 percent and no more than 50 percent of the total population.

Interesting. Read the whole thing.

Related: John Hinderaker: Does the Democratic Party Have a Future? “Pathetic. To hear the Democrats tell it, you would think there are only 10 or 11 Republican voters in the whole country, but somehow they manage to win majorities in both houses of Congress, 31 governorships, and an overwhelming majority of legislative seats. This sort of delusional thinking is not the sign of a healthy party.”