Throughout the past, the government and its systems have evolved and devolved. Usually the government transformed from a national to a federal, back to a dual system, then changing into a unitary government. The government has reflected all different forms and the main one is federalism. The government consists of enumerated powers in which certain areas of the government can only exercise those given rights. In addition, there are different spheres of powers. It also is sovereign in the sense that the states have control as well. Normally, the evolution of the federal government is between centralization and decentralization of powers.

The separation of powers is between the executive branch, which is the law enforcing group, the legislative branch which is the law making section, and the judicial branch which is the law interpreting branch. Each section can only do certain tasks and all have to cooperate in...