BOSTON– Former New York City mayor Rudy Giuliani tells National Review Online that the DSCC’s new attack ad against Bay State Republican Scott Brown, which uses an image of the World Trade Center, is “unthinkable, offensive, and a big mistake” that shows “how panicked” Democrats have become about losing Teddy Kennedy’s former Senate seat. “Never in their wildest dreams did they think they would lose in Massachusetts,” says Giuliani. “Now they’re using imagery from an area of New York where thousands of Americans died.” The ad, he concludes, “just understates how excessively negative they’ve become since they’re so paranoid about losing this seat. They’re now using buildings that were destroyed on 9/11 — which is just unthinkable — and somebody better look into what they’re really trying to say.”

Update: Brown weighs in:

BOSTON–Scott Brown, the Republican running for U.S. Senate in Massachusetts, tells National Review Online that the DSCC’s attack ad featuring the World Trade Center is “very disappointing” and says it’s “unfortunate” that his opponent, Democrat Martha Coakley, would use such ads. “She has run negative campaign when the people of Massachusetts want to talk about the issues. It’s time for her to pull all of her negative ads and make an effort to change the tone of her campaign.”