How has our constitutional managed to maintain proportional representation all areas of the state. E

By winning of half  electoral votes.

Explanation:

Our constitutional managed to maintain proportional representation all areas of the state by declaring winning of election when the candidate gain more than 50%  electoral votes in the election and they are able to form government in the country. In the United states of America, there are a total of 538 electoral votes. The candidate that gets more than half about 270  electoral votes wins the election.

try something like republic or democracy joined or something because its talking about a election party.

answer; because they must appeal to a broad cross-section of the population;