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Explanation: In the United States, only citizens who are registered to vote are eligible to cast their ballots in federal elections. Undocumented immigrants, also known as unauthorized or illegal immigrants, are not considered citizens and therefore are not allowed to vote in any federal, state, or local elections.
The right to vote in the United States is granted to citizens through the 14th Amendment to the Constitution, which was ratified in 1868. Since then, the right to vote has been expanded through various constitutional amendments and legislation to include women, African Americans, and other minority groups. However, undocumented immigrants have never been granted the right to vote as they are not considered legal citizens of the United States.