John O' Sullivan
Born on a British ship during the War of 1812,  O'Sullivan became a newspaper man and a New York politician.  He co-founded and edited the Democratic Review, a magazine that promoted Andrew Jackson's brand of democracy. His New York Morning News columns popularizing the notion that the United States had a "Manifest Destiny" to spread from sea to sea were extremely influential and represented the peak of his career.   He later worked for the independence of Cuba from Spain, and during the Civil War was an active supporter of the Confederacy. 
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