Knowles and Tropp decided to survey a representative sample of 1,700 white Americans to see how all these different factors — sense of racial identity, sense that the country is becoming less white, and support for Trump — correlated. Their findings suggest, as various other pieces of evidence have, that racial concerns really are quite salient when it comes to many white Americans’ support of Trump.

For example, the more Hispanic a neighborhood a given white respondent lived in, the more white they felt…

And the more white they felt, in turn, the more likely they were to support Trump…