Name one right only for United States citizens.

The right to vote in federal elections is a fundamental privilege reserved specifically for United States citizens. This right is enshrined in various amendments to the Constitution, notably the 15th, 19th, 24th, and 26th Amendments, which outline the protections against discriminatory voting practices and set the legal voting age. While the right to bear arms, free speech, and the right to a fair trial are also critical rights, they are not exclusive to citizens. For example, non-citizens can still have certain freedoms, like free speech, and the right to legal protections in court, making the voting right distinct in its exclusivity to citizens. Thus, the correct answer highlights a right that is uniquely tied to citizenship in the United States.