But some Democrats distanced themselves from the ad. Sen. John Kerry, D-Mass., called it "over the top."
"I don't like any kind of characterizations in our politics that call into question any active duty, distinguished general who I think under any circumstances serves with the best interests of our country," said Kerry, the 2004 Democratic presidential candidate and a decorated veteran.
White House spokesman Tony Snow called the ad a "boorish, childish, unworthy attack."
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