A spokesman for Sen. Joe Biden (D-Del.) has responded to Karl Rove’s remarks earlier, before the Maine delegation, that the vice presidential nominee was a “big blowhard doofus.”

Spokesman David Wade tells ABC News:

"It's more than a little sad that with another hurricane heading for the Gulf Coast, Karl Rove is up to the same old attack politics that he practically patented while helping dig a deep hole for our country to get out of. Americans expect better, especially at a time like this."