Answer: citizens of the entire state
Explanation:
There are two senator that go for every state, regarding their population size, area, or anything else. There are junior senators and senior senators. The junior senator is the senator that has been working the least time. The senior senator is the senator that has been working for the longer time.
These two senators represent the state they are working for in the Senate. They do not represent based off of the location of the person. They represent states, not the whole country of the United States.
The answer to the question is citizens of the entire state.
Hope this helps you!