After Andrew Jackson was elected President of the United States in 1828 and the Indian Removal Act became law in 1830, pressure mounted to relocate Native Americans west of the Mississippi River, including the Seminole in Florida, who resisted. On May 9, 1832, U.S. representatives and Seminole leaders met at Payne's Landing on the Ocklawaha River to sign the Treaty of Payne's Landing. Under its terms, the Seminole agreed to send a delegation to inspect the Creek Reservation west of the Mississippi, and if the land proved suitable, they would accept the treaty, relinquish land previously guaranteed under the Treaty of Moultrie Creek, and move west within three years, while the United States would keep their cattle and provide compensation and transportation expenses. Seminole leaders did not go with government representatives to inspect the proposed reservation until October 1832, and after months of travel the delegation met at Fort Gibson in Arkansas on March 28, 1833, to sign the Treaty of Fort Gibson, agreeing to abide by the earlier treaty's terms. After returning to Florida, the Seminole denied signing the Treaty of Fort Gibson or said they had been coerced into signing it. Although the U.S. Senate did not ratify the Treaty of Payne's Landing until April 12, 1834, the U.S. government counted the three-year period from the treaty's original signing in 1832, leaving the Seminole just over a year to relocate. They continued to refuse removal west of the Mississippi, tensions rose, and in March 1835 Wiley Thompson assembled Seminole chiefs and delivered Andrew Jackson's warning that if they refused to move, the commanding officer had been directed to remove them by force.