Government differs from all other groups most importantly in that it exercises sovereign power.
A government is a mechanism for the exercise of sovereign power of the state. A state is a political community that consists of a government exercising sovereign power over a fixed territory and given set of people.
A government refers to the set of formal institutions and processes through which public decisions are made. In a democracy like the United States, the government is elected by the people through periodic elections. Therefore, it is a representative institution.
A government has some primary responsibilities, including maintaining law and order, protecting and promoting the rights of citizens, ensuring national security, and preserving territorial integrity of the country.
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