Daily Kos Elections announces publication of 2020 presidential results for new House districts

Daily Kos Elections is pleased to announce the completion of its project to calculate the results of the 2020 presidential election for each of the nation's new congressional districts that will be used for the first time in the November midterms. These results reflect how the previous election would have played out under the new districts created as a result of the decennial redistricting process.

Our chart features data for all 435 districts nationwide in a single, permanent location. In addition, it includes our 2020 presidential results for the predecessor districts to every new district, enabling users to see how the partisan lean of each district has shifted. (We discuss how we identify predecessor districts—a task that is not always straightforward—at length below our chart.)

We've also compiled a separate spreadsheet that shows how every county that makes up each congressional district performed, including counties that are split between multiple districts, and we've published spreadsheets detailing all of our calculations on a state-by-state basis so that you can check our work. In addition, we've uploaded all of the raw election data we've relied on and put together a piece explaining exactly how we calculate these figures. (For those interested in a deep dive into the inner workings of this process, we've also updated our comprehensive statement of methodology.)