Yet another article arguing that demographic changes advantage the Democratic Party:
To grasp how powerfully demographic change is reshaping the political landscape try this thought experiment about the 2008 election.
Start by considering the electorate's six broadest demographic groups -- white voters with at least a four-year college degree; white voters without a college degree; African-Americans; Hispanics; Asians; and other minorities.
Now posit that each of those groups voted for Barack Obama or John McCain in exactly the same proportions as it actually did. Then imagine that each group represented the share of the electorate that it did in 1992. If each of these groups voted as it did in 2008 but constituted the same share of the electorate as in 1992, McCain would have won. Comfortably.
That's because Obama's best groups are much larger today than in 1992. From 1992 to 2008, the share of the vote cast by African-Americans jumped from 8 percent to 13 percent. For
Hispanics the share soared from 2 percent to 9 percent; for Asians and other minorities combined, from 2 percent to 5 percent. Meanwhile, the percentage of the vote cast by well-educated whites remained unchanged at 35 percent. The big losers were blue-collar whites -- those without college degrees -- whose share plummeted from 53 percent in 1992 to just 39 percent now.
That's a threat to the GOP because those culturally conservative, working-class whites are today its most reliable voters. McCain won 58 percent of them, and Obama just 40 percent.
Obama, by contrast, won 95 percent of African-Americans, 67 percent of Hispanics, 66 percent of other minorities, 62 percent of Asians, and 47 percent of college-educated whites. Apply those results to the 1992 share of the vote for all six groups, and McCain beats Obama, 50.2 percent to 47.9 percent.