This can’t be said often enough, so I’ll link to Don Taylor saying it today. The long-term deficit is all about health care:
Paying for the health care for the elderly, the disabled, and the poor is expensive and predicted to become increasingly expensive. It’s much cheaper in foreign countries, because those countries use price controls. One possible alternative to price controls is Paul Ryan’s plan to shift the costs onto households so as to bankrupt them rather than the government.