A interesting political opinion piece from the NYTimes, the author points out that recent shift in demography could be a key factor in the upcoming presidential election. In particular he points out that the Reps benefited from a migration out of cities, "And now the population boom to the exurbs is over, at least for the moment, according to Census Bureau figures released earlier this month."Now there is a move back to cities and suburbs, which could benefit the Dems, if they can hang on to the suburban vote in high growth areas.