The whites in Mississippi went for the racist.
You can predict how a county would vote in Mississippi by looking at the racial demographics. Compare the results by county on the map shown here:
https://www.nytimes.com/interactive/...-election.html
...and the 'whiteness' of counties shown on the map found here (you will need to scroll down past five rows of graphs first):
https://statisticalatlas.com/state/M...-and-Ethnicity