National Debt
The U.S. has a huge public debt, but how big? Various pundits claim it’s a modest 50% or gigantic, well over 100% of GDP. Which is it? The Treasury Department is the obvious place to start, because Treasury manages the debt. On May 7, 2010, the total public debt was $12.9 trillion, 88.4% of first quarter 2010 GDP ($14.6 trillion). However, only $8.4 trillion was held by the public (57.5% of GDP), with the remaining $4.5 representing intra-government holdings such as the Social Security Trust Fund.
So, these are the obvious alternatives, 57.5% for national debt held by the public, or 88.4%, total public debt. To really hyperventilate about the debt, one must forecast future debt. The national debt is estimated to be $18.4 trillion for 2014, almost 100% of GDP (and rising).