These conservatives live in districts that, in the general election, normally give large majorities to Democrats. As you might guess, living near Democrats these Republicans dislike them even more than suburbanites whose acquaintance is more arms-length. And they are voting for Trump.
What explains this dynamic? A major reason is that Trump’s (mainly white) supporters are disproportionately concentrated near areas with many minorities, suggesting that strained race relations may have played a role in their backing of Trump.