Nate Silver: Entitlement Programs Drive Growth in Federal Spending

Welcome aboard, Nate

It's one of the most fundamental political questions of our time: What's driving the growth in government spending? And it has a relatively straightforward answer: first and foremost, spending on health care through Medicare and Medicaid, and other major social insurance and entitlement programs.

But I thought it was worth reviewing the evidence in a bit more detail. There are a few surprises along the way, some of which liberal readers might like and others of which will please conservative readers.