请将以下陈述简化为3个部分：The United States Constitution was ratified in 1788, making it the supreme law of the United States. It outlines the structure and powers of the federal government and the rights of American citizens.

1. The United States Constitution was finalized in 1788.
2. It became the supreme law of the nation.
3. It defines the federal government's structure, powers, and citizens' rights.
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1. The United States Constitution was ratified in 1788.  
2. It became the supreme law of the United States.  
3. It outlines the federal government's structure, powers, and citizens' rights.
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