Interesting bit of historical data.
That’s really unusual for a Republican, and it means that among white voters overall, he’s probably not holding a winning hand.
If you look at seven live interview polls taken since Trump wrapped up the nomination in May, he has trailed among whites with a college degree by an average of 6 percentage points. The same polls have him losing among the overall electorate by an average of 5 percentage points. (That’s about where the race stands now.)