Giuliani lays out campaign vision in Florida speech

Giuliani is set to deliver a major address in Florida Saturday morning.

WASHINGTON (CNN) - Republican presidential hopeful Rudy Giuliani will argue he is a tested and proven leader in a speech Saturday that seems designed to shift momentum toward his campaign with less than three weeks until the primary season begins.

"If you are looking for perfection, you are not going to find it," Giuliani will say during a campaign address in Tampa, Florida, according to prepared remarks provided by the campaign. "Not in me and not in any candidate.

"But if you are looking for a leader who has been tested in times of crisis, a leader who is ready to lead right now, a leader who has achieved results – results that some people thought were impossible – a leader who believes that there is no problem too serious for American solutions and a free, American spirit … I believe I am that leader," he will add.

In the wide-ranging address that follows the release of several polls in the last two weeks suggesting he has lost his once-comfortable lead nationally, the former New York City mayor will call for continued vigilance in the war on terror, attaining energy independence, and getting tough on illegal immigration.

While most of the presidential field is focused on the early-voting states of Iowa and New Hampshire, Giuliani is hoping a win in Florida - which votes January 29 - will provide the former New York mayor significant momentum heading into the February 5 Super Tuesday contests.

Most polls out of Florida indicate Giuliani holds a narrow lead in the Sunshine State over rivals Mitt Romney and Mike Huckabee.

- CNN Ticker Producer Alexander Mooney