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3 Nov 2008
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Each graph shows the percentage difference between the number of supporters for Sen. Obama and the number of supporters for Sen. McCain. For example, a value of 10 means that 10 percent more people who were polled expressed a preference for Sen. Obama. Blue and red symbols indicate a lead of 7 percentage points or more for Sen. Obama or Sen. McCain, respectively.
The non-linear time scale shows an expanded view of the last 2 months of poll data, and a compressed view of the earlier data.
This graphical summary was generated by the DataMontage data visualization system. Try the interactive version of this graphical display. (Requires Java.)
The poll data was provided by www.electoral-vote.com
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