Answer:
The last stop for a typical new law before it becomes "official" is the Supreme Court. After a law is passed by Congress and signed by the President, it is then reviewed by the Supreme Court to determine whether it is in line with the Constitution. This process is known as judicial review and is part of the system of checks and balances set up by the Founding Fathers to ensure that no branch of government has too much power. If the Supreme Court finds that the law is unconstitutional, it will be struck down and will not become an official law.