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|party=[[Whig]](until 1854)[[Republican]] (1854-1872) [[Liberal Republican]] (1872-death)

|former=ny

'''Horace Greeley''' (February 3, 1811 &ndash; November 29, 1872) was an American publisher and editor who revolutionized the news by creating a national market for his [[New York Tribune]], a founder of the [[Republican Party]], reformer and presidential candidate. His ''New York Tribune'' was America's most influential newspaper from the 1840s to the 1870s and "established Greeley's reputation as the greatest editor of his day."<ref>Michael Emery and Edwin Emery, ''The Press and America'' (1988) 124-6.</ref> Greeley used it to promote the [[Whig Party]] and after 1854 the new Republican party, as well as antislavery and a host of reforms. Crusading against the corruption of [[Ulysses S. Grant]]'s Republican administration, he was the presidential candidate in 1872 of the new [[Liberal Republican Party]]. Despite having the additional support of the [[Democratic Party]] he lost in a landslide. He was a leading advocate of economic modernization and opposition to slavery, and his ''Tribune'' newspaper was the main voice of the [[Whig Party]] and later the [[Republican partyParty]].