Have citizenship in the united states has always had the same meaning

To Americans , the rules of citizenship can seem simple: You're a member of this nation either by birth or naturalization. The Constitution used the term “citizen” but did not define it. State citizenship law sufficed. The idea of birthright citizenship emerged from English common law.

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the united states has a federal government. the president is the head of the federal government of the united states. however, each state forms its government for administration purposes. the powers of the state governments are exercised within restricted state boundaries. and citizens participate in this government by voting.