Every 10 years, after the census, congressional and state legislature districts are redrawn to account for population changes. This gives whoever is drawing the maps the power to maximize the number of districts that favor their party — a tactic known as
gerrymandering. And as we wrote last month, the 2020 election represented the
last chance for voters to weigh in on who would draw those maps. Both parties went into the election with a chance to draw more congressional districts than the other, but the end result was just about the best-case scenario for Republicans. As the map below shows, Republicans are set to control the redistricting of 188 congressional seats — or 43 percent of the entire House of Representatives. By contrast, Democrats will control the redistricting of, at most, 73 seats, or 17 percent.