What I do find interesting is that the Republican Party is becoming more fundamentalist as time and elections go on, especially when both Ballmer and Gates are Republican.
They're not Christian fundamentalists but they do happen to vote that way due to business issues.
On the other hand, the US's first-past-the-post election system makes a multi-party system pretty difficult to maintain, so who knows.
The UK has a first-past-the-post system and has maintained a three party system for over one hundred years now. It has largely been between two parties (Labour and Conservative) but the third party (Liberal Democrats) have still been a vocal minority in parliament.
I honestly do believe we'll see a third party (be it Fundamentalist of Libertarian, depending on who 'wins' the Republicans) with a decade or two. The outcome of this coming election (whether Romney wins, and how the party reacts) could be a deciding factor.
> I honestly do believe we'll see a third party
Hopefully, but I was a former political junkie and third parties were never elected.
For a Presidential election a coalition doesn't make sense, but you guys do have other branches of government that could use a bit of a change.