Both sides of the pond and probably downunder as well:
... the complicated political maneuvers of these thin-skinned politicians induces a tedium in those of us who are forced to watch their petty chess games ...
Sigh. Yes, Dymphna's right.
Like Ann Elk, I have a theory, which is probably your theory too. It does seem that the moment anyone, even someone idealistic gets up to Capitol Hill or Westminster, there's a totally corrupting force in place. I don't believe all those pollies would have cheated on the taxpayers with their expenses in 'real life'. Everyone pushes it and maximizes to an extent but not to this extent. There really is a culture in place which induces a person to lose reason.
Perhaps you're with this view up to this point but you'll doubtless think the next bit OTT, as is my wont.
I really believe that there is a malignant force at the top, possibly connected with the great houses and families, which themselves, in their connections, go back millennia. The old evil on the plains of Babylon did not go away, why should it? It just went out of sight except when it popped up from time to time - usury, the Templars, the Scottish Rite, Hitler, many manifestations. The Fed.
I say this because I was tangentially connected to it for a while, as a blog post long ago mentioned and though it was seductive, it was also repellent. I'll never forget that time and there was a very real mood of 'we are little gods' in our own right. Some might say I've never lost that arrogance but I'm trying to.