To your first question--James Madison is widely known as the architect of the US Constitution (Although in reality it was the result of team work by 56 delegates).
To your second question--The six key principles outlined in the US Constitution are:
1. Popular Sovereignty (i.e. democracy or rule by the people)
2. Limited Government (i.e. again, democracy or the government can only do what the people instructs it to do)
3. Separation of Powers (there are three branches of power: legislative, executive, and judicial AND they are separate from each other)
Which brings me to...
4. Checks and Balances (each branch "checks and balances" the other two branches' power. For ex: the US President can veto congressional bills, Congress can ratifies judicial nominees, and the Supreme Court decides on the constitutionality of congressional bills).
5. Judicial Reviews (the judicial branch reviews governmental actions)
6. Federalism (there is a federal and a state government. These are separate from each other)
<span>..centers of international trade and commerce. </span>
C. Rub your tires up against the curb to slow down.
Answer:
The tenth Amendment
Explanation:
This amendment states that powers not given to the granted by the constitution or powers prohibited by the states is granted to the people/citizens of the states. I.e Not all powers of the state government is granted to the federal government but only the states inhibits this law and the state citizens.