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Officials are on alert as anarchists threaten to shut down both National Conventions. CNN's Jill Dougherty reports.
CNN's Sandra Endo reports on the preparations Tampa's airport is taking ahead of possible weather hassles.
(CNN) – Former Senator Rick Santorum of Pennsylvania defended Mitt Romney's recent overseas trip for its overall strength Tuesday and stated he expected to receive a speaking slot at the upcoming Republican National Convention.
Interviewed by CNN's senior correspondent Joe Johns on "The Situation Room," Santorum put aside their bitter Republican primary battles to laud Romney's support of U.S. allies.