ASSOCIATED PRESS: MIAMI — Sen. John McCain won a breakthrough triumph in the Florida primary Tuesday night, gaining the upper hand in the battle for the Republican presidential nomination ahead of next week’s contests across 21 states and lining up a quick endorsement from soon-to-be dropout Rudy Giuliani. “I want to thank my dear friend, my dear friend Rudy Giuliani, who invested his heart and soul in this primary and who conducted himself with all the qualities of the exceptional American leaders he truly is,” McCain said. “Thank you Rudy for all you have added to this race and being and […]