Who was the President of the United States during the signing of the Gadsden Purchase?

Franklin Pierce was the president of the United States during the signing of the Gadsden Purchase. The Gadsden Purchase was a treaty signed in 1853, during Pierce's presidency, which acquired a strip of land in present-day southern Arizona and southwestern New Mexico from Mexico. Pierce supported expansionism and believed in Manifest Destiny, the belief that the United States was destined to expand its territory. The Gadsden Purchase was seen as an opportunity to fulfill this goal, securing a route for a southern transcontinental railroad and resolving border and territorial disputes.