For how many years is a U.S. Senator elected?

Members of the U.S. Senate are elected to serve a term of six years. This duration is established by the U.S. Constitution, which outlines the structure and function of the legislature.

The six-year term allows senators to focus on long-term policy decisions and helps ensure stability within the Senate, as their longer terms reduce the frequency of elections compared to the House of Representatives, where members serve two-year terms. This design encourages lawmakers to consider the broader implications of legislation, as they are not up for reelection as often.

The other options do not align with the standard terms set for U.S. Senate elections. The four-year term is typically associated with the presidency, while eight and ten-year terms are not established for any federal legislative body. Therefore, the correct answer reflects the established term length for U.S. Senators and underscores the distinct roles within the federal government.