Buffett claimed you could solve the deficit problem instantly by firing congress when they run deficits. Obviously, untenable (they'll cheat, admin overhead, etc).

You could very easily force congress to balance the budget (both parties and the media have complained endlessly about this for exactly no good reason). You could also freeze spending at current levels and force congress to do it's job: allocate our limited resources most productively.

Hard to get re elected doing the right thing, but maybe we just need a throw away set of leaders to do the hard work?