Our project to calculate the 2020 presidential results for all 435 congressional districts nationwide goes to O-H-I-O. You can find our complete data set here, which we're updating continuously as the precinct-level election returns we need for our calculations become available.
Despite Democratic hopes, Donald Trump’s 53-45 win in Ohio matched his 52-44 performance in this one-time swing state four years ago. Trump also carried the same 12 congressional districts that he took last time, while the remaining four Clinton seats also went for Biden. Likewise, all the Trump districts remained in GOP hands, while the four Clinton/Biden districts once again elected Democratic members. You can find a larger version of our map here.