Obama's ahead -- "The new survey shows Obama running ahead of McCain by 48 percent to 42 percent among all adults. Among registered voters, the margin is essentially the same -- 49 percent to 45 percent." Obama's also got the support of only 80 percent of Democrats, whereas John McCain has 90 percent of Republicans and John Kerry got 89 percent of Democrats in November 2004. So in principle he could expand his lead by several points purely through base-rallying gestures

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