WASHINGTON (CNN) - It's beginning to get ugly between the two New Yorkers running for president.
A top surrogate to Sen. Hillary Clinton's, D-New York, White House bid, slammed former New York Mayor Rudy Giuliani in a television interview Wednesday night, saying "there's a lot that the rest of the country is going to get to know" about the Republican presidential frontrunner.
"I can't even get into the number of marriages and the fact that his children - the relationship he has with his children - and what kind of circumstances New York was in before Sept. 11," former Iowa Gov. Tom Vilsack, who briefly mounted a presidential bid himself earlier in the year before backing Clinton, told New York 1.
"There are lot of issues involving Mayor Giuliani . . . He's got a very interesting past," Vilsack added.
Meanwhile, Giuliani has been sharply critical of Clinton in recent days after she told the top U.S. commander in Iraq, Gen. David Petraeus, at a Senate Armed Services Committee hearing that his assessment required "a willing suspension of disbelief," and for her refusal to formally condemn MoveOn.org after it published an ad in the New York Times attacking Petraeus' credibility.
Responding to Vilsack's comments, Giuliani's campaign said, "Gov. Vilsack is right. The rest of the country is going to get to know what New Yorkers already do - Rudy Giuliani tackled the impossible and turned around the City – cutting taxes, reducing crime and moving people off welfare and into work."
UPDATE: Asked by CNN's Jessica Yellin Thursday if Vilsack's comments were appropriate, Clinton said, "I'm not engaging in any of that. I'm focused on my campaign"
– CNN Ticker Producer Alexander Mooney