In other words, Trump's Republican party is losing votes in more highly educated districts, which not surprisingly fare better in the information-age economy. Conversely, it gains votes in districts with a lower education.
My guess is that the dividing line between 'Red' and 'Blue' is being renegotiated as we speak. The post-WWI political arguments, largely about economics, are being replaced by something new. Trump obviously has a good nose for these matters.