Did Redistricting Cost Democrats The House? – By Nathaniel Rakich and Elena Mejia (FiveThirtyEight) / Dec 1, 2022
The 2022 election for the House of Representatives was so close1 that if any number of things had gone differently, Democrats might have kept their majority. And one of the biggest things that affected the battle for the House was redistricting — the decennial redrawing of congressional districts’ lines to account for the results of the 2020 census.
But was the impact of redistricting significant enough to swing the House to the GOP? As I wrote in June, the 2021-22 redistricting cycle didn’t radically change the partisanship of the national House map, so I mostly agree with those who say redistricting didn’t cost Democrats the House. But at the same time, those who say Republicans won only because they gerrymandered are also technically correct. How can both things be true? Allow me to explain.
One way to test the claim that “redistricting cost Democrats the House” is to assess whether Democrats would have held onto the chamber if redistricting had never happened. We at FiveThirtyEight have already calculated how many percentage points each district swung left or right thanks to redistricting. For example, a district that went from a partisan lean2 of R+2 to D+3 got 5 points bluer. Then I compared this swing to the current 2022 House margin in that district.3 Suppose a party lost by less than the district swung away from that party in redistricting. In that case, it’s likely that redistricting cost that party the seat.
CONTINUE > https://fivethirtyeight.com/features/redistricting-house-2022/
