In 2010, 45 percent of those voters identified as Democrats and 34 percent as Republican, a Democratic lean of 11 points. By 2019, college grads had become strongly Democratic, an 11-point difference — 34 percent Republican versus 45 percent Democratic. In 2010, small-town and rural communities leaned Republican by five points, 42 percent GOP versus 37 percent Democratic. But the Democratic lean in 2019 had grown to 13 points, 47 percent Democratic versus 34 percent for the GOP. In 2010, Democrats held a 35-point edge with the group, 57 percent to 22 percent for Republicans.

Source: Wall Street Journal January 19, 2020 13:52 UTC