The latest Quinnipiac poll finds President Obama leads Mitt Romney nationally among likely voters, 49% to 45%.

Obama leads Romney 56% to 38% among women and 94% to 2% among black voters. Men back Romney 52% to 42% while white voters back him 53% to 42%.

Pollster Peter Brown: “President Obama won only about 43% of the white vote in 2008, so his current standing among whites tracks his earlier winning performance. If the president can match or exceed his 2008 showing among whites it will be difficult to impossible for Romney to win. It is also very difficult to win an election when you are getting shellacked among women, the group that makes up about half the electorate.”