I am completely incapable of understanding this argument.
The only interests states have are the interests of their constituents. States don't need representation, their people do - because states don't have interests, people who live in them have interests.
It should be noted that the original ideal, at the time the national framework was drafted, was for the Senate to represent the interests of oligarchs, couched in the language of it serving as a representative of the interests of the states. In that respect, it's still doing a rather swell job.
The only interests states have are the interests of their constituents. States don't need representation, their people do - because states don't have interests, people who live in them have interests.
It should be noted that the original ideal, at the time the national framework was drafted, was for the Senate to represent the interests of oligarchs, couched in the language of it serving as a representative of the interests of the states. In that respect, it's still doing a rather swell job.