The story

Sen. John McCain claimed victory in Florida's Republican primary, and Sen. Hillary Clinton took the state's Democratic contest Tuesday night.

The results in the Republican race might have delivered a fatal blow to the campaign of former New York Mayor Rudy Giuliani, who was a distant third as results came in Tuesday night.

Two GOP sources with direct knowledge of Giuliani's plans said he will drop out of the race and endorse McCain at an event in California on Wednesday.

While Giuliani didn't say he was withdrawing from the race, he did speak of his campaign in the past tense at one point.

"I'm proud I ran a positive campaign," he told supporters. "I ran a campaign that was uplifting." Watch how Giuliani reacted to the results Read full article »

CNN's Bill Schneider, Paul Steinhauser and Alexander Mooney contributed to this report.

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