I would guess it’s the most black, oriental, homosexual, mexican, puerto rican, jewish, fembot county?
probably some of those 90% black counties in the Mississippi Delta ..where I come from...are in there...Sharkey...Issaquena ..Holmes
maybe Rio Grande valley too
or Indian reservation stuff like near Rushmore or the Hopi area in AZ
It’s an Indian county in South Dakota that was most pro-Obama