Continental United States
All voters Sep Aug Jul Jun May Apr Mar
Bush 45% 45% 44% 45% 44% 43% 42%
Kerry 46% 49% 47% 46% 45% 48% 48%
Nader 3% 2% 3% 3% 4% 2% 2%
Undecided 6% 4% 6% 6% 7% 7% 8%
1014 registered voters, Aug 30-Sep 1,
MOE ± 3 percentage points
http://americanresearchgroup.com/
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This is the only poll in the last 3 weeks to have Bush's approval rating below 50% - I think we can safely discount this one as either biased or an outlier...