The new Quinnipiac national poll shows Obama leading McCain by 4 points. With this poll, Obama has now regained a slim lead in the RCP National Average, which McCain had led for the last week and a half.

The Quinnipiac poll finds Obama winning women voters by a 14-point margin and men supporting McCain by a 7-point margin. Obama leads among blacks by 91 points, while independents split between the two candidates.

Obama 49 (+2 vs. last poll, Aug. 12-17)
McCain 45 (+3)
Und 5

Obama now leads by 0.9 of a point in the RCP National Average