Source? I'd legitimately be interested to see how it has changed. I haven't seen much movement in my particular bubble; it's the same people now as back then.
The Washington Post[0] has it broken down by demographics since June. As you can see, as of October 13th, Trump's only lead in education is among voters who have completed "some college", with Clinton having a huge lead among those with college degrees and postgraduate degrees. She even has a narrow lead among those with a high school education or less.
