After Donald J. Trump’s upset victory in the 2016 presidential election, one data point from the network exit polls jumped out at analysts: his two-point win among college-educated white voters.
Many pre-election polls had suggested they would favor Hillary Clinton. And now, more than a year later, polls again show Mr. Trump with striking weakness among well-educated white voters, implying he has alienated many who backed him in 2016.
But it is increasingly clear that there’s another explanation: The exit polls were wrong. CONT.
Nate Cohn, New York Times