NASHUA, N.H. — Republican presidential contender Rudy Giuliani said Tuesday he couldn't evaluate whether President Bush's 10-week-old troop increase in Iraq was working.

"I don't know the answer to that," the former New York City mayor told reporters after speaking with a group of business leaders in the first-in-the-nation primary state.

Giuliani did, however, have an opinion on what he said is necessary for victory in Iraq _ an emphasis on helping Iraqis rebuild their country.

"By build I mean, re-establish the infrastructure, both physical and political, and the emphasis on that is going to be key to whether it does work or not," he said in response to a question about whether Bush's troop boost that was aimed at pacifying violence-plagued Baghdad was achieving results.....