More from TIME/CNN's Iowa Poll
Total: Obama 55, McCain 40
Among men: Obama 48, McCain 46
Among women: Obama 61, McCain 35
Among whites: Obama 55, McCain 40
Among 65+ age group: Obama 54, McCain 43
Under 50 age group: Obama 57, McCain 38
Making under $50,000/year: Obama 64, McCain 31
Making over $50,000/year: Obama 49, McCain 47
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