What are the legal requirements to run for senate?

To run for the U.S. Senate, a candidate must meet three legal requirements: they must be at least 30 years old, be a citizen of the United States for at least nine years, and be a resident of the state they wish to represent. Additionally, candidates typically need to file nomination papers and pay any applicable fees, which can vary by state. Each state may also have specific rules regarding campaign financing and other eligibility criteria.