Upthread some interesting posts and cites.
What I read about Linz was interesting, along with the observation we have fewer intermediaries in the information stream to filter voices from far off center.
I've wondered this too, and Acsenray's response upthread covers it (for more detailed info, see [Duverger's law](http://en.wikipedia.org/wiki/Duverger%27s_law)). I've also read that two party systems tend to be more stable, though I don't have a good cite for this.
So, yeah, you could change the US system to a parliamentary system, but, and I know I'm not alone in this, can't we expect better performance from our politicians with the system as-is, or are they just victims of their immoderate party roles?
[ol]
[li]can’t politicans shift to more moderate stances in order to get measures passed?[/li][li]can’t they curb their “unrelenting competition for control of Congress and the White House, which is itself an historical anomaly”, for the sake of more efficient politics? (the quote from a very recent article (5/26) by Thomas Mann of the Atlantic; it’s a bit alarmist in the beginning, and not for sensitive republicans in the middle, but topical)[/li][li]and, which is more in line with the OP, can we preserve constructive debate and political outcomes in spite of deep partisan divides?[/li][/ol]
We seem to be using partisan poles less for the purpose of producing useful debate, better ideas, more informed voters, etc., and more for the fantasy of steering the nation into one of them (from [Harvard Business Review](http://hbr.org/2012/03/fixing-whats-wrong-with-us-politics/ar/1): "Look closely at U.S. history, and you’ll see that deep philosophical differences aren’t new and that some of the most ideologically charged periods produced important policy advances, often delivering the best ideas from both sides."--seems like we're overdue)
To call them ideologies seems something of a joke. Where is the philosophical-level discussion and debate, the dialectic to accompany these high-minded "ideologies"? For a sampling of how far things have gone in a partisanship-at-the-expense-of-debate direction, I picked a random day within the past month or so out of online House and Senate transcripts; this a sample from different speakers from the House, April 9th (it was the first day I picked, honest):
[Mr. MAFFEI] Unfortunately, this year's Ryan budget is more of the same recklessness and extreme partisanship that we have seen year after year from the House Republican leadership.
[Mr. CICILLINE] Instead of bringing the American Jobs Act to the floor, an act which would create nearly 2 million new jobs, my Republican colleagues remain obsessed with trying to repeal ObamaCare.
[Mr. RUIZ] I urge my colleagues to end the partisan political gamesmanship and put American families and our seniors first.
[Ms. EDWARDS] Unfortunately the fiscal year 2015 Republican budget introduced by Paul Ryan takes the opposite approach. It benefits the few at the top by showering tax breaks on millionaires and corporate special interests, while shifting the burden of the Federal budget to middle class families.... Now, of course, the Ryan budget doesn't touch tax breaks for big oil and gas companies that ship jobs overseas....Republicans are raising taxes on middle class families with children by an average of at least $2,000 a year in order to cut taxes for millionaires....I want to repeat that for the American people. The Ryan budget reopens the doughnut hole that Democrats closed....Indeed, the Republican plan would draw traditional Medicare into a death spiral. It would end it as we know it.
...and then we have the "debate" as it trickles down to (or up from?) the voters (a random sampling from an unmoderated discussion below an [article](http://thinkprogress.org/justice/2014/05/26/3441556/california-shooting-renews-congressional-demand-for-gun-control/) on the recent Santa Barbara shooting):
(RIGHT) Libturds can only blame Republicans, NRA or Tea Party, that's all these A$$ Monkey's are allowed to do by their left wing leaders. Deloris statement that "blood is on all their hands" shows what drama queens can do when they decide to debate the issue (that'll be a little sarcasm for you lefties)
(LEFT) This is the most bizarre set of right wing lies I've ever seen. The delusional postings here are getting scary.
(RIGHT) In 1865 a Democrat shot and killed Abraham Lincoln, President of the United States.; In 1881 a left wing radical Democrat shot James Garfield, President of the United States who later died from the wound.; In 1963 a radical left wing socialist shot and killed John F. Kennedy, President of the United States. [etc., a long list meant to implicate (with stinging irony no doubt) the left in gun use]
(LEFT) Republicans think masking their insecurities is more important than everyone else staying alive.
(RIGHT) Same Old song dance from the left, why don't you just come out and say it, "You want a Police State"! You want to subject all Americans to your liberal ideological mandates, and if they don't, they are evil according to you!