What is one right only for United States citizens?

The right to vote in federal elections is specifically designated for United States citizens. According to the U.S. Constitution and various federal laws, voting in elections for Congress and the Presidency is a privilege granted exclusively to citizens, ensuring that those who participate in shaping policies and electing representatives have a vested interest in the country's governance.

While many rights, such as free speech and the right to bear arms, are available to all residents within the country, regardless of citizenship status, the right to vote is a fundamental aspect of citizenship. It emphasizes the relationship between the citizen and the state, allowing citizens to have a direct say in their governance. Similarly, the right to run for President is also limited to citizens, as it requires an individual to be a natural-born citizen. However, the question specifically asks for a right exclusive to U.S. citizens in a broader context, which is well-covered by the right to vote in federal elections.