According to the principle of Separation of Powers, in order to avoid that someone or some people try to usurp all the power, this authority must be divided and separated into three distinct branches:
- Executive branch: as it names indicates it, this branch of government governs the state by executing and enforcing its laws.
- Legislative branch: this branch is responsible for the creation, examination, the debating and voting of the laws that will be enforced and executed by the Executive power. It legislates (creates the laws).
- Judicial branch: this is literally the branch that judges the laws that have been created by the Judiciary and how they are executed by the Executive. There is an intricate system of courts throughout the USA that interprets and handles the application of the laws on behalf of the state. They review the laws and actions of the other two branches concerning the laws and the Constitution.
This system is theoretically very efficient in preventing a government to become tyrannical since each branch of the government is under strict surveillance of the other two. In the absence of a Judicial branch, if someone introduced a questionable " bill" they wanted to become law and it passed and got voted, such law could not be reviewed or suspended or challenged by anybody since there would be no courts for that. The Executive would be forced to execute it and even if it opposed it if the party who introduced the law had an absolute majority they would be able to overrule the Executive.
