He referred obliquely to her as part of the presidential "household" in his famous Gold Spoon Oration. The attack was delivered in Congress and the depiction of the president as living a royal lifestyle was a primary factor in his defeat for re-election. Van Buren easily won renomination for a second term at the 1840 Democratic National Convention, but he and his party faced a difficult election in 1840. Van Buren's presidency had been a difficult affair, with the U.S. economy mired in a severe downturn, and other divisive issues, such as slavery, western expansion, and tensions with Great Britain, providing opportunities for Van Buren's political opponents—including some of his fellow Democrats—to criticize his actions. Although Van Buren's renomination was never in doubt, Democratic strategists began to question the wisdom of keeping Johnson on the ticket. Even former president Jackson conceded that Johnson was a liability and insisted on former House Speaker James K. Polk of Tennessee as Van Buren's new running mate. Van Buren was reluctant to drop Johnson, who was popular with workers and radicals in the North and added military experience to the ticket, which might prove important against likely Whig nominee William Henry Harrison. Rather than re-nominating Johnson, the Democratic convention decided to allow state Democratic Party leaders to select the vice-presidential candidates for their states. 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. Whigs presented Harrison as the antithesis of the president, whom they derided as ineffective, corrupt, and effete. Whigs also depicted Van Buren as an aristocrat living in high style in the White House, while they used images of Harrison in a log cabin sipping cider to convince voters that he was a man of the people.