Okay, time to properly launch this: SUPER SWING DISTRICTS! https://superswingdistricts.org
This is a slate of Democratic candidates calculated for maximum impact for your donation dollars.
National campaigns receive a ton of money, but can't always deploy it locally in the places that the Electoral College, gerrymandering, and … shenanigans mean it needs to be spent. But figuring out which local campaigns *can* use it is a lot of work. This site is the output of that work.