Obama's electoral advantage according to the Zogby Poll is 272 to MacCain's 160, with 105 within the margin of error, many of which are leaning to Obama. Further, Libertarian candidate Bob Barr has a significant 6% and is hurting McCain. This survey has a margin of error of just 0.5%.
Pollster John Zogby:
“Obama is in the driver’s seat right now, especially where it really counts - in the electoral votes. Bob Barr could really hurt McCain’s chances. McCain can’t afford the level of slippage to Barr we found among conservatives in this polling..."