Congress-people have few incentives to restrain or reduce the national debt. There is plenty of talk, but little action. The event horizon may be distant, but the pull is inexorable. What could possibly solve this? Could we give representatives and senators bonuses for spending less and taxing more?
Not sure about that solution, but we could elect representation that does the right thing(s), and not just the thing(s) that get them reelected.
I think restricting the presidency to 2 terms is actually quite positive, and I wish we had a similar system in Canada (although generally it works out to be more or less the same)