Whom does a U.S. Senator represent?

A U.S. Senator represents all people of their state. This means that, unlike members of the House of Representatives who serve specific districts within a state, Senators are elected to represent the interests of the entire state. Each state, regardless of its population, has two Senators, which ensures equal representation for all states in the Senate. Senators are responsible for making decisions and crafting legislation that impact their entire state’s population, addressing issues that affect all constituents rather than just a specific geographic area.

The other options, while they touch upon related concepts, do not encompass the full scope of a Senator's responsibilities. For instance, a U.S. Senator does not solely represent their district, as that would not provide a comprehensive representation of the state's needs. Similarly, they do not represent the federal government directly or address the interests of local governments exclusively, as their mandate is to consider the welfare of all citizens within their state.