Giuliani said Tuesday it's not time to write McCain's presidential bid off.
"Changes happen in a campaign," said Giuliani after a town hall meeting in Concord, New Hampshire.
Giuliani continued, “This is way too early for anybody to be written off. John McCain is a fighter. I expect John to be right there waging a tough campaign.”
The former New York City Mayor is competing against McCain for the GOP presidential nomination and stressed that he thinks the Arizona senator will remain in the race, just as prior candidates, Ronald Reagan and John Kerry, did after they made changes to their campaign staff.
“John is professional," said Giuliani. "He knows this business really well. Unless you really know him, you don’t know what a strong guy he really is. I would be the last one to ever think John McCain is counted out."
Earlier Tuesday, Campaign Manager Terry Nelson and Chief Strategist John Weaver announced their resignation from McCain’s presidential campaign.
- CNN Political Assignment Editor Marissa Muller