Jackson ran again in 1828, defeating Adams in a landslide. Jackson faced the threat of secession by South Carolina over what opponents called the "Tariff of Abominations". The crisis was defused when the tariff was amended, and Jackson threatened the use of military force if South Carolina attempted to secede. In Congress, Henry Clay led the effort to reauthorize the Second Bank of the United States. Jackson, regarding the Bank as a corrupt institution that benefited the wealthy at the expense of ordinary Americans, vetoed the renewal of its charter. After a lengthy struggle, Jackson and his allies thoroughly dismantled the Bank. In 1835, Jackson became the only president to completely pay off the national debt, fulfilling a longtime goal. While Jackson pursued numerous reforms designed to eliminate waste and corruption, his presidency marked the beginning of the ascendancy of the party "spoils system" in American politics. In 1830, Jackson signed the Indian Removal Act, which forcibly removed most members of the major tribes of the Southeast to Indian Territory; these removals were subsequently known as the Trail of Tears. The relocation process dispossessed these nations of their land and resulted in widespread death and disease. Jackson opposed the abolitionist movement, which grew stronger in his second term. In foreign affairs, Jackson's administration concluded a "most favored nation" treaty with the United Kingdom, settled claims of damages against France from the Napoleonic Wars, and recognized the Republic of Texas. In January 1835, he survived the first assassination attempt on a sitting president.