What are three differences between the Roman republic government and the United States government? short
1) The Roman Republic government had a system of three branches - the Senate, the Magistrates, and the Assemblies - which shared power and responsibilities, whereas the United States government has a system of separation of powers between its three branches - the Executive, Legislative, and Judicial branches.
2) In the Roman Republic, only adult male Roman citizens were able to vote and participate in the governmental process, whereas in the United States, citizenship is not limited by gender or race, and all citizens above a certain age are entitled to vote and participate in government.
3) The Roman Republic did not have a written constitution, and its laws were often derived from customs and precedents, whereas the United States has a written constitution that serves as the supreme law of the land and sets out the framework of government as well as the rights and freedoms of its citizens.