What is one right guaranteed to all U.S. citizens under the Constitution?

One of the rights guaranteed to all U.S. citizens under the Constitution is the right to vote in a federal election. This right is crucial for the functioning of a democratic government, as it allows citizens to participate in the political process by selecting their representatives in Congress and deciding on important national issues through referendums and initiatives. The Voting Rights Act and other constitutional amendments, such as the 15th, 19th, and 26th Amendments, have reinforced and expanded this right, ensuring that all citizens, regardless of race, gender, or age (over 18), have the ability to vote.

The other options, while important aspects of civic life, do not enjoy the same constitutional guarantee as the right to vote. While individuals may have the opportunity to run for state office and work in federal jobs, these rights are not explicitly protected by the Constitution in the same manner. Healthcare is a vital service, but it is not a federally guaranteed right for citizens under the Constitution. Therefore, the guarantee of the right to vote stands out as a foundational aspect of U.S. citizenship.