The assumption here is that the Congress accurately reflects the politics of the electorate. Total nonsense of course, but let’s pretend the Congress is not a deeply conservative institution awash in corporate cash designed to make sure it stays that way.
I thought you tea bag folks understood that. I’m guessing that at least the real right-libertarians are with me on this one.

Wikipedia does a decent job defining these terms… Left-libertarianism Right-libertarianism I just saw that Sirota wrote about this over the weekend… When you look past the craziness, chaos and confusion of politics these days, you still find roughly two major schools of thought that aim to explain What’s Fundamentally Wrong. The first says America is paralyzed by a political system that is too democratic — too responsive to citizens’ whims. This is the religion of almost everyone in the permanent Washington elite, regardless of party. Its canon mixing paeans to noblesse oblige with shrill authoritarianism is most clearly articulated by high priests like The Washington Post’s David Broder and The New York Times’ Tom Friedman. The former has said democracy threatens to make “official Washington altogether too responsive to public opinion”; the latter dreams of Chinese-style dictatorship. “One-party autocracy certainly has its drawbacks. But when it is led by a reasonably enlightened group of people, as China is today, it can also have great advantages,” Friedman recently gushed, adding that the chief “advantage” is the ability of despots to “just impose” policies at the barrel of a gun. By contrast, most people living outside of Washington (i.e., the Rest of Us) see America harmed by a political system that is too undemocratic — too controlled by moneyed interests, unaccountable lawmakers and a servile press. An organizer friend of mine sums up this view by saying, “The best kind of politician is a nervous politician” — and the trouble is that gerrymandering, extended terms, incumbent fundraising advantages, obsequious media coverage, lame duck-ness and other travesties make sure few politicians are ever nervous about keeping their jobs. The idea that the most “liberal” in Congress (especially the Senate) hold views somehow in line with what the left or frankly in many cases… Read more »

I ascribe to the Humpty Dumpty view of language: “When I use a word it means just what I choose it to mean – neither more nor less… The question is which is to be master – that’s all.”
Impenetrability! That’s what I say!
As to confusion over left/right, etc. I ascribe to the definition of terms as used in the Political Compass site and disavow any association with the left/right nonsense that passes for analysis in the mainstream media.