>>8268033You do understand it's not done by county, it's done by prestinct. I used these 2 maps because they have block by block level precision in racial and political data. As you can see, it's only small bits of the counties, its not the whole county, just the national map can't really get these details down.
>http://www.justicemap.org/index.php?gsLayer=plural&gfLon=-95.3&gfLat=39.6&giZoom=4&gsGeo=county&giAdvanced=1&>https://www.nytimes.com/interactive/2018/upshot/election-2016-voting-precinct-maps.html