“The grinding battle over congressional redistricting is drawing to a close. And, contrary to expectations that the process would result in big Republican gains, the final House of Representatives map may well improve somewhat for Democrats.
The main reason is gerrymandering — redrawing of district lines for partisan benefit. Republicans built on their existing gerrymanders to try to expand their House advantage, but Democrats fired back even more powerfully with gerrymanders of their own.
Basically, Democrats saved themselves by resorting to a tactic they’ve previously denounced as not only unfair but downright unethical — House Speaker Nancy Pelosi called gerrymandering “unjust and deeply dangerous” in 2019. But in the absence of national reforms banning the practice, refusing to gerrymander would have meant effective unilateral disarmament, ceding the GOP a significant advantage in the battle for control over the House.
Redistricting has proceeded like a tug of war. As state legislatures, judges, and commissions have approved new maps, creating more safe or swing districts in various states, the underlying partisanship of the median House district has been pulled in one direction, and then the other. The most powerful pulls came from either state legislatures that gerrymandered, or state courts that struck down certain gerrymandered maps”
“it’s entirely possible, perhaps likely, that Democrats will still lose badly in House elections this fall — the party has a small majority, President Biden is unpopular, and the historical pattern is for the incumbent’s party to struggle in the midterms. But unlike much of the previous decade, the underlying map may be at least somewhat less biased in Republicans’ favor.”