Which President Believed in Manifest Destiny
James Polk as President He was a champion of manifest destinythe belief that the United States was fated to expand across the North American continentand by the end of his four years in office the nation extended for the first time from the Atlantic Ocean to the Pacific Ocean. He was a champion of manifest destinythe belief that the United States was fated to expand across the North American continentand by the end of his four years in office the nation extended for the first time from the Atlantic Ocean to the Pacific Ocean. Pin On Manifest Money Polk President of the United States 1845-1849. . Doing this caused more problems for Mexico and America. President Polk strongly believed in manifest destiny. To have the United States control territory from the Atlantic to the Pacific Oceans -was the goal of supporters of Manifest Destiny. Polk was a believer in Manifest Destiny and wanted to expand the country to the Pacific Co...