Answer:
The constitution is the written document that lays out the structure of the United States government.
Step-by-step explanation:
The Constitution of United States of America is a written document with remarkable features like judicial review, superiority of supreme court, presidential form of government etc.
The one who frame the Constitution adopted Montesquieu 's separation of power and so executive, legislature and judiciary power are assigned to three different wings of the government- president, congress and supreme Court respectively. The process of doing amendment in the Constitution is very long and complicated.