I think this might be the first presidential campaign gaffe equivalent of a music mash-up, as multiple unforced errors by both a presidential and vice-presidential nominee get chopped down into a fine, fine puree by the patented Obama campaign's Super Gaffe-O-Matic '76 blending machine. First up, via InstaPundit, here's Joe Biden on the 6:30 PM CBS News, complete with video:

Barack Obama's running mate says a campaign ad that mocked Republican presidential candidate John McCain as an out-of-touch, out-of-date computer illiterate was "terrible" and would not have been done had he known about it.

Obama, McCain's Democratic rival, launched the ad earlier this month, part of an aggressive push to slow McCain's rise in the polls after he chose Alaska Gov. Sarah Palin to be his running mate. It included unflattering footage of Sen. McCain at a hearing in the early '80s, wearing giant glasses and an out-of-style suit, interspersed with shots of a disco ball, a clunky phone, an outdated computer and a Rubik's Cube.

"He admits he still doesn't know how to use a computer, can't send an e-mail, still doesn't understand the economy, and favors $200 billion in new tax cuts for corporations, but almost nothing for the middle class," the ad says.

Asked about the negative tone of the campaign, and this ad in particular, during an interview broadcast Monday by the "CBS Evening News," Obama's running mate, Sen. Joe Biden, said he disapproved of it.

"I thought that was terrible, by the way," Biden said.

Asked why it was done, he said: "I didn't know we did it and if I had anything to do with it, we'd have never done it."

And here's Biden a few hours later:

I was asked about an ad I'd never seen, reacting merely to press reports. As I said right then, I knew there was nothing intentionally personal in the criticism of Senator McCain's views which look backwards not forwards and are out of touch with the new economic challenges we face today. Having now reviewed the ad, it is even more clear to me that given the disgraceful tenor of Senator McCain's ads and their persistent falsehoods, his campaign is in no position to criticize, especially when they continue to distort Barack's votes on an issue as personal as keeping kids safe from sexual predators.

The Obama camp has been thugishly issuing threats on a surprisingly routine basis to metaphorically break the knees of his critics on the right, so presumably, his veep feels equally threatened to stay in line, lest he face a painful Luigi Vercotti-style end to his nomination. (Which "notorious conservative blogger" Glenn Reynolds has been not predicting right from the start!)

Or perhaps the Obama campaign's PR department just threw caution to the wind and got a quick press release out there, safe in the assumption that Biden likely can't remember what the heck comes out of his perpetual motion machine of a mouth from one moment to the next.

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