what does a u.s. senator represent
State senators represent certain districts within their own state, so only residents. in those areas can vote for them. U.S. senators are chosen at a statewide vote. State senators serve in the state legislature, while U.S. senators make up one. chamber of Congress. As Stephanie has pointed out, that means U.S. senators. represent both their own state and the nation as a whole, while state senators. are only responsible for legislation that affects the state.