American Research Group Poll. March 9-11, 2004. N=770 registered voters nationwide. MoE ± 3.5.
"If the election for president were being held between George W. Bush, the Republican, and John Kerry, the Democrat, for whom would you vote: Bush or Kerry?" (Last month in parenthesis)
Kerry: 50% (48%)
Bush: 43% (46%)
I Dunno: 7% (6%)