If you think the US is screwed, you should have a look across the pond to sunny old Blighty. There too career politicians excel at making a pig's ear of everything. Why? Because they are politicians first and politicians last. They know about power, and that is it. They know how to acquire power, and they know how to retain it. They are experts in the arts of backroom deals arm-twisting and horse trading. They are all in it to see how high they can rise, and how long they can stay there.
As for the public sphere, their lives revolve around short, pretty speeches and soundbites. Nothing too long, and definately nothing too complex. They are all masters at twisting and manipulating the English language to suit their needs and their needs alone. Honestly, what to the words 'reform', 'revolution', 'progress'. 'liberal', etc, etc.... really mean?
When it comes to actually running things, they haven't got a clue what's going on. They might be experts at making things look good, but getting things to be good. They haven't got a hope in hell. They just delegate things to bodies of interested parties (usually Quangos) who almost always have an agenda of their own. These bodies are accountable to no-one but the ministers, and just so long as things are 'looking good', then it's a don't ask/don't say policy with regards to what is really going on.
I can only imagine that this is how America as run as well. Result, we have two economies upp shit creek and not a paddle in sight.
My advice would be to give all aspiring politicians this rule.
No-one is allowed to be a member of a party, let alone run for an official position until they have worked for at least 10 years in the real world. However, there will be certian places that will not count. Marketing, advertising, law, salesmen, in other words people who are paid to do nothing but bullshit - I don't want running the country. Get people in who have had actual experience of doing things. Get them in charge. Not those whelps that have lept straight out of university/college and into a research/advisory position to an MP or minister. People like that we have no use for whatsoever.