Finally
Now, if we can just get Obama to say this himself - and continually - and not wait until a Friday afternoon. From an Obama spokesperson:

Today on "The View," John McCain defended his campaign's latest ad campaign, which has been debunked repeatedly as both false and sleazy. In running the sleaziest campaign since South Carolina in 2000 and standing by completely debunked lies on national television, it's clear that John McCain would rather lose his integrity than lose an election.