Education Attainment vs Presidential Election Results
While it's unusual to find a deep red, highly educated county, blue counties tend to range the span from highly educated like Falls Church City, Virginia (79% college graduates) to very few college graduates like Taliaferro County, Georgia (5% college graduates).
R Code: https://github.com/AndyArthur/r_maps_and_graphs/blob/main/education_vs_2020_pres.R