that was based on his primary voters.
i ran the county by county numbers only to learn that the counties that swung the most to trump were the poorest, and the ones that swung to hillary were the most well off.
here is wisconsin for example:
View attachment 3840061
now, that doesn't mean that trump didn't win some of the wealthier counties, he did.
but he didn't win them by as much as romney did. he ran up the numbers in the poorest, whitest, least educated areas. and it was just enough to tip the cities for once.