NEW YORK, NY January 06, 2008 —Last night's Democratic presidential debate in New Hampshire could be described by paraphrasing Bill Clinton: it depends on what the definition of "change" is.

REPORTER: John Edwards was at pains to latch onto the rising star of Illinois Senator Barack Obama, who's fresh off a victory in Iowa. Edwards and Obama both continued their efforts to label Hillary Clinton as the representative of the status quo. But the New York Senator fought back, saying she's the real agent of change:

CLINTON: I'm not just running on a promise of change. I'm running on 35 years of change. I'm running on having taken on the drug companies and the health insurance companies, taking on the oil companies.

REPORTER: Earlier in the evening, the GOP hopefuls faced off in their own debate. Former New York mayor Rudolph Giuliani again presented himself as the best candidate to carry on the war on terrorism. He said the Democratic candidates are in denial about the ideology of violent jihad:

GIULIANI: It's an existential threat. It has nothing to do with our foreign policy. It has to do with their ideas, their theories. The things that they have done and the way they've perverted their religion into hatred of us.

REPORTER: New Hampshire primary voters go to the polls Tuesday.