As for the Congress, there are two houses, the House of Representatives which is the lower house and the Senate which is the higher house. The House(of Representatives) is elected based population with each district in theory having an equally large populace. The Senate is elected based in States, there are two senators for every state regardless of the size of population of that state resulting in inaccurate representation of the people, for example some states Such as Montana have only Representative but have just as many Senators as California which has 39 Representatives.