The principle by which the power of government are divided among separate branches. In the context of the government of the United States of America, according to the Constitution, the three branches of the government - Executive (President) - Legislative (Congress) - Judicial (the Courts) - each have have their own powers. By separating Powers between branches of government you prevent any individual branch from gaining too much power. Each branch has the ability to be a check on the actions of other branches, this is commonly called a system of checks and balances.
unlawful
Senators and Representatives work for the U.S. Congress and the people who elect them.
naturalization process
unitary government
ratified by state legislatures or state conventions.