BLITZER: Oil from the Gulf disaster is not just impacting Florida's beaches. It is now also colliding with the state's closely watched U.S. Senate race. And joining us now, Marco Rubio. He is the Republican candidate for the U.S. Senate from Florida, the former House speaker in Florida. Thanks very much for coming in. MARCO RUBIO (R), FLORIDA SENATORIAL CANDIDATE: Thanks for having me... (Read Full Article)