United States government is mainly divided into three branches including the executive branch, the legislature, and the judiciary. These three branches play different roles in the government and are meant to ensure that there is a check and balance on the roles of the other branches such that there is no one branch that abuse the authority it has been bestowed with. The three branches function independent of the other to ensure that there is minimal interference in their work. The executive, which is headed by the president, ensures that government policies are implemented and may come up with policy and law initiatives which are enacted by the legislature. The main role of legislature is to enact country laws (Fredrick). On the other hand the judiciary is bestowed with power to interpret these laws. The judiciary ensures that the laws are interpreted as they are supposed to and may override laws enacted by the judiciary if they are found to be in conflict with laws which were enacted earlier.