I've heard both Polk and Franklin Pierce.
Polk Actually there were several different presidents during the time period of the Manifest Destiny. I am not sure who they are, but I don no that James K. Polk was one of them
manifest destiny
Two U.S. presidents who were strong proponents of Manifest Destiny are James K. Polk and Andrew Jackson. Polk, in particular, actively sought to expand U.S. territory, leading to the annexation of Texas and the Oregon Trail's settlement. Jackson, while not directly associated with the term, supported policies that encouraged westward expansion and the removal of Native Americans from their lands, aligning with the Manifest Destiny ideology.
James Polk
Manifest Destiny.
I think: "Go west, boys"
manifest destiny
Manifest Destiny
manifest destiny
It was known as Manifest Destiny and was a factor in American foreign policy during the 19th century.
James K. Polk the 11th President of the United States.
Expansionists -study island