IMHO, I don't see it as "broken" in the sense that it can be repaired to run better in its current form. It seems to be running to serve itself, primarily. Personally, I'd like to see it totally redesigned according to the original spec sheet. However, that's not going to happen.
I think we'll have to continue down the path we've taken, bickering about relatively small differences in the two parties in charge, and eventually experience the greatest internal war ever fought. I expect that the government (or governments) that emerge from that war are very likely to be much worse than what we have now.
I'm also guessing that that war won't happen during my lifetime.
"Faith and reason are like two wings on which the human spirit rises to the contemplation of truth ..."
– Pope Saint John Paul II