Why are highly educated Americans becoming more liberal?

In 1994, 7 percent of post-grads were “consistently liberal,” and 1 percent of people with high school educations or less were — not much of a difference. Today, the gap is 25 points wide — 31 percent of people with post-grad educations are consistently liberal, compared to 5 percent of those with high school educations or less.

The same kind of change just hasn’t happened on the conservative side.

Split it out by party, and the shift is even starker. Among the post-grad set, more than half of Democrats and Democratic-leaners today are “consistently liberal,” up from fewer than one-in-five in 1994. Likewise, among college grads, it jumped from 12 to 47.