From a Wall Street Journal story by Barton Swaim headlined “Politics: ‘Where Have All the Democrats Gone?’ and ‘Party of the People'”:

In 2002, John B. Judis and Ruy Teixeira published a book whose thesis seemed calculated to tempt liberals into thinking they’d discovered electoral fairy dust. “The Emerging Democratic Majority” argued that four demographic groups were trending strongly toward the center-left: professionals, women, minorities and blue-collar workers.

The election of Barack Obama in 2008 seemed to confirm their thesis, and soon young Democratic strategists and pundits had reduced Messrs. Judis and Teixeira’s nuanced and complex argument to the formulation “demography is destiny.” In other words: We win, no matter what!