At some point, our Leskonomics policy (free money!) of simply throwing more money at problems has to stop. But that would require two things:
Politically viable ideas for making more limited government electorally palatable. Right now, significant cuts to the major programs would get many supportive politicians voted out of office; that's not a good strategy for winning.
Leadership and charisma necessary to rally popular and political support for those policies.
Democrats don't seem interested in any idea beyond "throw more money at it", and Republicans don't seem to have any ideas at all. Unfortunately, neither of them has a significant, immediate incentive to behave any other way. That means our government is only capable of change when we actually run off the cliff.