Horace Greeley (February 3, 1811 - November 29, 1872) was an American editor of a leading newspaper, a founder of the Liberal Republican Party, reformer and politician. 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." Greeley used it to promote the Whig and Republican parties, 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.