MANAGUA, Nicaragua -- President Daniel Ortega, who led the 1979 revolution in Nicaragua, says Barack Obama's presidential bid is a "revolutionary" phenomenon in the United States. "It's not to say that there is already a revolution under way in the U.S. ... but yes, they are laying the foundations for a revolutionary change," the Sandinista leader said Wednesday night as he accepted an honorary doctorate from an engineering university. Ortega led a Soviet-backed government that battled U.S.-supported Contra rebels before he lost power in a 1990 election. He returned to office last year via the ballot box. In statements broadcast...