What is one responsibility that is only for United States citizens?

Voting in federal elections is a responsibility that is exclusively reserved for United States citizens. This privilege is a fundamental aspect of civic engagement and ensures that citizens have a direct voice in their government and in the democratic process. The ability to vote on matters such as presidential elections and congressional representatives is tied to citizenship, marking a clear distinction between citizens and non-citizens in terms of political participation.

While paying taxes and obeying laws are responsibilities that apply to all individuals residing in the United States, voting is a right that is specifically granted to citizens. Additionally, defending the Constitution is more a duty of government officials and citizens in particular contexts, but it does not encapsulate the broader and definitive civic responsibility that comes with voting. Therefore, the act of voting stands out as the unique responsibility that only U.S. citizens are entitled to fulfill.