What is the form of government of the United States?

The form of government of the United States is best described as a republic. In a republic, the country's affairs are managed by elected representatives who are accountable to the public. This structure is designed to ensure that the interests of the citizens are represented, and it allows for a system of checks and balances among the branches of government.

This form of government stands in contrast to a monarchy, where a single ruler, such as a king or queen, holds significant power, often inherited through family lineage. While the United States is also a democracy, emphasizing the role of the people in electing their representatives and participating in politics, the term "republic" captures the specific nature of how governance is structured and the emphasis on a representative system. Oligarchy, on the other hand, refers to a government run by a small group of individuals, which does not reflect the broader electoral participation and representation that characterizes the U.S. system.