Hey, and idea for an AH: what if the U.S. had had a proportional electoral system?
I'll have most of the board against me on this one I suppose, but....
I live in Sweden, and we have proportional representation. A party gets 15 percent of the votes, it gets 15 percent of the 349 seats in the Riksdag (parliament), as it should be. You have to get more than 4 percent of the votes though, this to ensure you won't have a plethora of tiny parties. (Don't really like that...the minimum should be 1 percent, I think.)
When you have a system with representation for a region, however, the electoral process is grossly distorted. E.g., suppose party A gets 25 percent of the votes in all districts, whereas party B gets 21 percent, party C 20 percent, party D 20 percent, party E 14 percent. You get a second round between A and B in every district, and A wins them all with a small margin. Voilà! Party A has 100 percent of the seats in parliament, even though it is only supported by 25 percent of the population!
My point is: regional representation means the votes of the losers in a district are thrown away: they won't be represented this electoral period. Only the winners will be.
Imagine to live in a country where you're not represented by anyone in parliament, even though you voted ... imagine if it would happen again and again ... smaller parties are quickly strangled, and you are left with just two or maybe three big ones, who as luck would have it are all too pleased with this system....
No wonder less and less people vote in such nations! No wonder people lose interest and feel frustrated. I would be frustrated as h e l l.
In my opinion, proportional representation is the only democratic way to go. Throwing away the votes of the losers, leaving them without representation, is not democratic.
Funnily, both of the two largest parties in Sweden have considered changing the constitution to regional representation. The prime minister has said that it would "strengthen democracy," lying that people in a region would feel closer to their MP. As if the MP wouldn't simply represent the people who actually voted for him, not his ideological enemies.