Baron de Montesquieu believed in the separation of powers, which is included in the US Constitution. I hope this is what you are looking for.
Answer:
Republican form clause is a clause in the U.S. Constitution that grants to every state in its union a republican form of government. ... “The United States shall guarantee to every State in this Union a Republican Form of Government, and shall protect each of them against Invasion.
Explanation:
People such as John Locke, (who the colonists looked up into his writing), believed that people were born with natural rights, such as life, liberty, and property. The colonists in America believed similar, and got inspiration from what John Locke wrote in a book.