Again -- don't obsess about each individual poll; Newsweek had Obama up four in the mid-forties. Quinnipiac's latest national survey, out this morning, has Obama hitting 50% of a likely voter sample, up nine, against McCain.
Obama leads McCain among women by 19 points; McCain leads Obama among white voters by 7 points. Obama's leading among voters 18 to 34 -- note the TV-friendly demographic -- by 32 points. They tie among votes over 55.
In "swing" states, Obama leads McCain by 11 points. In GOP-leaning states -- where Bush won by more than five points over Kerry in '04 -- McCain leads by three.
Independents are split. The economy is the top issue -- 53% say it is. Iraq is the most important to 16%, and a partisan split is emerging on what to do.
Again: Obama leads among those who cite the war as their top concern, but Americans are split about what to do.
Note: be wary of likely voter screens at this early stage; registered voters are usually a bit more palatable. The survey, taken July 8-13, sampled more than 1,700 voters via telephone and has a margin of error of +/- 2.4 percent. The overall head-to-head numbers push leaners.