The Washington Post is connecting dots between birth rates and election results...

"Over the past decade, fertility rates among all major American ethnic groups have either remained low or fallen dramatically. Between 1990 and 2002 fertility declined 14 percent among Mexican Americans and 24 percent among Puerto Ricans. African Americans, according to the National Center for Health Statistics, now have a lower average fertility rate than whites, and they are no longer producing enough children to replace their population. But one big difference in fertility rates remains: Conservative, religiously minded Americans are putting far more of their genes into the future than their liberal, secular counterparts."

Are we seeing a form of 'natural selection' at work? James Taranto of the Wall Street Journal calls it the Roe effect.