New Ad Uses Clinton to Slam Obama

McCain's latest TV spot features clips of Sen. Clinton criticizing Obama-- on Rezko, the tone of his campaign and more. Click above to watch or read script here.

Suggests her attacks are the reason she's not his running mate. "The truth hurt, and Obama didn't like it."

Ad will air in key states.

Clinton spokeswoman responds: "Hillary Clinton’s support of Barack Obama is clear. She has said repeatedly that Barack Obama and she share a commitment to changing the direction of the country... John McCain doesn’t."