President Barack Obama took office promising to lead from the center and solve big problems. He has exerted enormous political energy attempting to reform the nation's health-care system. But the biggest economic problem facing the nation is not health care. It's the deficit. Recently, the White House signaled that it will get serious about reducing the deficit next year—after it locks into place massive new health-care entitlements. This is a recipe for disaster, as it will create a new appetite for increased spending and yet another powerful interest group to oppose deficit-reduction measures.

Our fiscal situation has deteriorated rapidly in just the past few years. The federal government ran a 2009 deficit of $1.4 trillion—the highest since World War II—as spending...