It's Rush Wot Won it
David Weigel, Reason Magazine
......Go and check the exit polls. In Wisconsin, Republicans made up 9 percent of the Democratic primary vote. Obama won them 72-28 over Clinton. Just as tellingly, 14 percent of primary voters said they were "conservative," and Obama won them 59-40, a bigger margin than he won with liberals or moderates. Tactical voters who said Obama stood a better chance of winning in November? They went for him 87-13.
Now, look at Ohio. Once again 9 percent of voters were Republicans, but Obama and Clinton split them evenly, 49-49. Once again, 14 percent of voters were "conservatives," and Obama and Clinton split them 48-48. (Obama did better with them than he did with liberals and moderates.) Those tactical voters who thought Obama could win gave him a 80-18 victory, a margin twelve points smaller than the margin in Wisconsin.....