Isaac prompts hurricane warnings from La. to Fla.
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Credit: Getty Images
TAMPA, FL - AUGUST 26: A worker prepares the podium on stage ahead of the Republican National Convention at the Tampa Bay Times Forum on August 26, 2012 in Tampa, Florida. The RNC is scheduled to convene on August 27 and will hold its first full-day session on August 28 as Tropical Storm Isaac threatens disruptions due to its proximity to the Florida peninsula. (Photo by Chip Somodevilla/Getty Images)
