Obama's Exclusive Interview With 'GMA'

Obama Doesn't Regret Not Picking Clinton

Despite his complaint that the campaign was veering away from issues that concern voters and concentrating on unimportant controversies, Obama rebuffed Cuomo's suggestion that he accept McCain's offer to hold a series of town halls together.

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"This whole thing about town halls I think is a little bit of a gimmick," Obama said. "We've got three debates coming up."

During his interview with "GMA," Obama indicated the big shift of white women voters to McCain was part of a "cycle" in a long campaign rather than McCain's selection of Palin as his running mate.

Obama said he wasn't having second thoughts about snubbing Sen. Hillary Clinton for Sen. Joe Biden as his running mate, despite the surge in white women for McCain and Biden's comment over the weekend that Clinton "quite frankly ... might have been a better pick than me."

"That's Joe's classic generosity. I mean, I think that's part of what makes Joe so endearing, that despite the fact that he's been in Washington a long time, he's just a generous person, and a self-deprecating person," Obama said.

Obama, who picked up $66 million in campaign cash over the past month, is stumping in Colorado today.

McCain, who raked in $47 million in the last month, will be making stop in Florida.

Palin will be campaigning in the crucial state of Ohio today.