The American Form Of Government

What is America's true form of government? Is the United States a Democracy or a Republic, what is the difference and why does it matter? This video very clearly highlights the path the United States is on and the inevitable outcome if we do not restore our Constitutional Republic.
Original YouTube video:
https://www.youtube.com/watch?v=VogzExP3qhI

History of the United States
https://en.wikipedia.org/wiki/History_of_the_United_States

U.S. History Primary Source Timeline
https://www.loc.gov/classroom-materials/united-states-history-primary-source-timeline/