Who was the 10th president of the US?

John Tyler (March 29, 1790 – January 18, 1862) was the tenth President of the United States, serving from 1841 to 1845 after briefly being the tenth Vice President (1841). He was elected to the latter office on the 1840 Whig ticket with President William Henry Harrison.

Tyler ascended to the presidency after Harrison's death in April 1841, only a month after the start of the new administration. He was a supporter of states' rights, and as president he adopted nationalist policies only when they did not infringe on the powers of the states. His unexpected rise to the presidency, with the resulting threat to the presidential ambitions of Henry Clay and other politicians, left him estranged from both major political parties.