I stumbled across an image at https://ibb.co/GF5zPc4 that shows minority majority or majority minority counties as brown and the ones that almost had minority majority status as yellow. It also shows the 2016 electoral map for President of the United States. I noticed that most of the counties that voted blue were highlighted as majority minority except for mainly the New England area. This is not for commentary. What percent of the counties carried by Clinton have a non-Hispanic White population less than 50%?
Note: this does not work at the state level so much (3/4 states like this vote blue but there are many more blue states), but it does seem to correlate strongly at the county level.