[QUOTE=Lemur866]
We have winner take all elections. In a three way race where Party X gets 35% of the vote, Party Y gets 34%, and Party Z gets 31%, Party X wins the seat. And if there are 435 seats across the country, and all have the same result, Party X will get 100% of the seats.
This is the reason we have a two party system–if you don’t win a plurality, you get nothing. There’s no prize for second place, and there’s definately no prize for third place. Lots of countries do have prizes for second place and third place, and this encourages multiple parties, since you don’t have to win a majority to win a seat.
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The argument that first-the-post is the reason you’ve only got two parties just doesn’t fly, in and of itself. In the U.K. and in Canada, first-past-the-post is used in national elections, with exactly the same principle of winner-take-all. Both those countries have several viable parties, not just a two-party system.
For example, in the 2005 general election in the U.K., 10 parties won seats, under a first-past-the-post system: election map, 2005.
In Canada, in the 2008 general election, four parties won seats, under a first-past-the-post system: election map, 2008.
I think that hogarth’s point is a good one. In both the U.K. and Canada, regional parties are common, and that is reflected in the maps. Does that mean that the U.S. is simply a more homogenous country, and therefore regional parties don’t get traction? Dunno.
I also think that acsenray’s points are also valid:
[QUOTE=acsenray]
Nationalize regulation and administration of federal elections, thus preventing state and local governments from locking out small parties. Create a neutral apportionment commission to draw district lines.
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Since the national elections are controlled so much by the states, each state can pass laws that favour the existing parties, which tends to lock out upstart parties. In Canada, where federal elections are in the control of the federal government, the rules are much more neutral, and they make it easy for a new party to start in.
When the rules are made state-by-state, at the local level, it’s a lot easier to have cozy rules that favour particular groups, where the two parties accomodate each other to keep the others out. Moving the rule-making to the national level makes the subject to much greater media scrutiny, and also makes it much more difficult for local interests to govern - because the rules have to apply across the board.
Moving the seat distribution mechanism to a neutral body would also help, because currently, both parties in the state legislatures draw the electoral maps in a way that favours the two established parties. If a non-partisan body did it, as is the case in most democracies, based solely on population distribution and not past voting practices, the playing field is much more level.