New polls in Oregon and Wisconsin show a close race between Obama and McCain, while two new polls in New York show the Illinois senator with a large lead.

In Oregon, the SurveyUSA poll (August 2-4, 629 LV) shows Obama leading by 3 points -- the same margin he held in the previous poll taken in mid-June, two weeks after he secured the nomination. John Kerry won Oregon in 2004 by 4 points, and in 2000 Al Gore won it by less than 7,000 votes.

Obama 48
McCain 45

Obama holds a 6.7-point lead in the RCP Average for Oregon

In Wisconsin, a new WPR poll (August 3-4, 600 LV) shows just a 6-point margin for Obama (his smallest in any poll in the state in over a month), with a large number of undecided voters. This state was decided by just 11,000 votes in 2004 and 5,000 votes in 2000, with Kerry and Gore both winning.

Obama 44
McCain 38
Und 18

Obama leads by 9.0 points in the RCP Average for Wisconsin

In New York, which last voted Republican in 1984 and 1980, Obama holds 21- and 19-point leads in two new polls by Quinnipiac and Rasmussen.

Quinnipiac (July 31-August 4, 1353 LV)

Obama 57
McCain 36

Rasmussen (August 4, 500 LV)

Obama 55
McCain 36

Obama leads by 19.3 points in the RCP Average for New York