Jabrwock wrote:
Some have made a valid point though, what's the use of 2 elected houses? Both will be split along roughly the same party lines, just like in the US. At that point you might as well just merge the two.
The difference in the United States is that each house is a different answer to the question of how to keep state representation more or less equal. It's a known fact that big cities and densely-populated areas are more liberal than rural farm and ranch areas and places with low population. (With the possible exception of Salt Lake City, Utah.) So, how do you represent each state in one big Congress?
If each state has direct equal representation, it skews the balance of power sharply in favor of the sparsely-populated areas. California has more population than any three small states like Wyoming or Montana combined, but in an equal-representation system, would be outvoted three-to-one by them. That's hardly fair to the extra people in California, who are essentially wasted.
In a direct popular vote system, or a district-level system with representatives based on population, the problem still exists but the other way around. This is more or less what you see in Presidential elections. California has 55 electoral votes, Wyoming has three, and that's
after everyone gets a flat +2 just for having Senators. If districts were all that mattered, any President could just take the approach of hitting every major city (San Francisco, Denver, Los Angeles, Chicago, etc.) and completely ignoring the lesser states. That's also essentially what would happen in Congress, as the small states are just too small to have a say whenever the big cities want to do something under this system.
So, they came up with the system we have. The House of Representatives works on a district level, seats according to population. Meanwhile, the Senate has two seats per state, period. To top it off, the House and Senate have to agree before a law is passed. It's a brilliant compromise. My only complaint is that too much importance is placed on the Senate (Senators getting six-year terms instead of two, a Representative running for Senator is seen as a "promotion," they're the only house that gets to deliberate on Presidental appointments, etc.) when the two should ideally be equal.