These contours are well-known among political watchers; whites without four-year college degrees and men tend to be more Republican than women and college grads. But while these cleavages are seen across elections, it’s easy to forget that the gaps are typically not all that large — at least in comparison to this year.

Take 2012. Mitt Romney won 61 percent of non-college whites compared with 56 percent of white college grads. The gap was nearly identical between white men and white women, 62 and 56 percent.

Now, according to the latest Post-ABC poll released last week: Donald Trump received 65 percent support among white registered voters without a four-year college degree, compared with 46 percent among white college graduates, a 19-point gap. If the margin holds, it would easily be the largest education gap among whites in presidential elections since 1980.