Isaac Watched by Traders, Republicans on Move to Florida

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Tropical Storm Isaac, moving through the Caribbean Sea, may become a hurricane tomorrow as it travels west on a path watched by commodity markets and officials preparing for the Republican National Convention.

Isaac is forecast to strengthen and cross Haiti and Cuba before arriving on the southwestern Florida coast Aug. 27, the National Hurricane Center said. That’s the opening day of the Tampa gathering at which Republicans are expected to nominate Mitt Romney as their presidential candidate.