“In 2016, Donald J. Trump confounded the polls in part by generating an unanticipated level of enthusiasm and turnout from a group that had grown increasingly apathetic about elections: white voters without college degrees. But in 2020, Mr. Trump and Joseph R. Biden Jr. face a drastically changed electorate. The cohort of non-college-educated white voters — who gave Mr. Trump just enough of a margin to win the election in 2016 — has been in a long-term decline, while both minority voters and white college-educated voters have steadily increased.”
“The decline, a demographic glacier driven largely by aging, has continued since 2016. The number of voting-age white Americans without college degrees has dropped by more than five million in the past four years, while the number of minority voters and college-educated white voters has collectively increased by more than 13 million in the same period. In key swing states, the changes far outstrip Mr. Trump’s narrow 2016 margins” – New York Times.