In a devastating blow to the Giuliani campaign, Florida Governor Charlie Crist announced last night that he was throwing his support - and considerable weight and popularity - behind John McCain.The Giuliani camp had been working on Crist for months, trying to get him to endorse Rudy. But Crist proved himself a savvy politician when he held off on his endorsement:Giuliani campaign sources said Crist pledged his endorsement to Giuliani in the early fall, when McCain’s campaign appeared dead and Giuliani was leading the state by double digits. But at the time, McCain supporters leaned on Crist to hold back and wait until after the New Hampshire primary. McCain had campaigned for Crist when he was seeking the Republican nomination for governor, and had hoped Crist would return the favor. After McCain’s New Hampshire victory, Giuliani aides did not know what Crist would do next, but the governor had said as recently as Friday that he might still weigh in before the Florida...(Read Full Post)