Rudy Giuliani poked fun at Barack Obama's experience, Wednesday, and hailed John McCain as the more qualified "applicant" for America.
"Barack Obama has never led anything. Nothing. Nada," Giuliani fired.
The former New York City mayor took the stage at the GOP convention just before McCain's running mate Sarah Palin. During his speech, he talked directly to those still torn between who to vote for.
"I'd like to suggest one way to think about the choice you have to make in 2008," Giuliani began. "You're hiring someone to do a job -- an important job that involves the safety and security of your family." Watch Giuliani's entire speech here.
Giuliani went on to describe two applicants, one John McCain and the other Barack Obama.
"On the one hand, you've got a man who has dedicated his life to the service of his country. He's been tested time and again by crisis. He's passed every test," Giuliani explained.
"On the other hand, you have a resume from a gifted man with an Ivy League education. He worked as a community organizer...and immersed himself in Chicago machine politics. Then he ran for the state legislature, where nearly 130 times he couldn't figure out how to vote yes or no. It was too tough," Giuliani later added.
He pointed out that Obama had voted only "present" on occasions, a procedural allowance that allows for a virtual "non-vote" vote.
"When you're president of the United States, you can't just vote 'present,'" Giuliani said. "You must make decisions."
"Tough times require strong leadership, and this is no time for on-the-job training," he said.
Both Giuliani and Mitt Romney also bashed Democrats on their idea of change.
"Our opponents want to reframe the debate. They would have you believe that this election is about change versus more of the same. But that's really a false choice because change is not a destination, just as hope is not a strategy," Giuliani said.
"John McCain will bring about the change that will create jobs and prosperity. He will lower taxes so our economy can grow. He will reduce government spending to strengthen our dollar. He will expand free trade so we can be even more competitive," he said.
"He will lead us toward an America that will be independent of foreign oil by an all-of-the-above approach, including nuclear power and offshore drilling.This is the kind of change we need," he added.
Moving on to McCain's running mate, Giuliani admitted he like her partly because she had been a mayor.
"Gov. Palin represents a new generation," he said. "And she already has more executive experience than the entire Democratic ticket. She's led a city and a state. She's reduced taxes and government spending. And she's actually done something about moving America toward energy independence."
Earlier Wednesday, Giuliani said on "Good Morning America" that he would have trusted Palin if she were president on 9/11.
"I'd be confident that she'd be able to handle it," he claimed. "She's been a governor of a state. She's been mayor of a city."
Thursday night, he had the opposite feeling for Barack Obama.
"If Barack Obama had been president, there would have been no troop surge and our troops would have been withdrawn in defeat," he said.