In 3 sentences, describe two similarities and two differences between the United States government and the Roman republic

Similarities:

1. Both the United States government and the Roman republic were based on a system of representative democracy where citizens elected officials to represent them in government.
2. Both had a system of checks and balances in place to ensure that no one branch of government had too much power and to prevent corruption.
Differences:
1. The Roman republic had a combination of a Senate and two consuls as the highest political authorities, while the United States government has a system of three branches: executive, legislative, and judiciary.
2. The Roman republic practiced slavery, which was a fundamental part of its economy and society, while the United States government abolished slavery through the 13th Amendment to the Constitution in 1865.