Exclusive: Cheney Cites 'Major Success' in Iraq, Says U.S. Has Hit 'Rough Patch'

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Asked about Sen. Barack Obama's speech on race, Cheney said, "One of the things I've avoided so far is getting in the middle of the Democratic presidential primary process. And I think I'll stay there."

Cheney said he had no reaction to American troops who support Obama's position on withdrawing from Iraq voting for the Illinois senator.

"They're a broad cross section of America. I think they've overwhelmingly supported the mission. Every single one of them is a volunteer," Cheney said.