Van Buren hoped that the Whigs would nominate Clay for president, which would allow Van Buren to cast the 1840 campaign as a clash between Van Buren's Independent Treasury system and Clay's support for a national bank. However, rather than nominating longtime party spokesmen like Clay and Daniel Webster, the 1839 Whig National Convention nominated Harrison, who had served in various governmental positions during his career and had earned fame for his military leadership in the Battle of Tippecanoe and the War of 1812. Whig leaders like William Seward and Thaddeus Stevens believed that Harrison's war record would effectively counter the popular appeals of the Democratic Party. For vice president, the Whigs nominated former Senator John Tyler of Virginia. Clay was deeply disappointed by his defeat at the convention, but he nonetheless threw his support behind Harrison.