Posted by Foon Rhee, deputy national political editor October 30, 2008 09:43 AM Boston.com


A new set of battleground state polls show Democrat Barack Obama ahead in Nevada, North Carolina, Ohio, and Pennsylvania. Republican John McCain is holding on in his home state of Arizona.

In the CNN/Opinion Research Corp. polls released this morning, Obama leads 52 percent to 45 percent among likely voters in Nevada, 52 to 46 percent in North Carolina, 51 percent to 47 percent in Ohio, and 55 percent to 43 percent in Pennsylvania.

In Arizona, McCain leads 53 percent to 46 percent.

The polls are the latest that show the potential for Obama making deep inroads into traditionally Republican states, setting himself up for a possible electoral landslide on Tuesday.

The surveys were conducted Oct. 23-28 and have margins of error of plus or minus 3.5 percentage points in Arizona, Ohio, and Pennsylvania, and 4 percentage points in Nevada and North Carolina.