What was the principle behind Manifest Destiny?

Manifest Destiny, a phrase coined in 1845, is the idea that the United States is destined—by God, its advocates believed—to expand its dominion and spread democracy and capitalism across the entire North American continent.

Explanation:

d) the constitution rights of native americans and their right to self-government on reservations

there has only been 12 presidents. the 12th president is/was moon jae-in