A new Zogby poll shows Barack ObamaBarack Hussein ObamaCan Biden vanquish Democrats' old, debilitating ghosts? How space exploration will help to address climate change Democrats' squabbling vindicates Biden non-campaign MORE building momentum against John McCainJohn Sidney McCainDemocrats' squabbling vindicates Biden non-campaign McSally, staff asked to break up maskless photo op inside Capitol Palin responds to Obama: 'He is a purveyor of untruths' MORE and starting to open an electoral college lead.

Obama leads McCain nationally, 44 percent to 38 percent, with Libertarian candidate Bob Barr polling at 6 percent.

Carried out to the fifty states, the poll shows Obama holding a 273 to 158 electoral college lead over McCain with 105 electoral college votes undecided. The number needed to win is 270.

"Obama is in the driver