See that pointy bit up there? I think that's 2008, least that's what the scale made me assume. There are many reasons not to vote for Obama*, but driving up America's debt isn't one of them, actually.**
* There have been very few policy changes since 2001 in general. Some, like abortion being legal, are good; others, like the Patriot Act, are not so good. But I'd vote for Dubya before a professed Mormon. At least I know he's done drugs!
** Not that the President actually has that much of anything to do with increasing the deficit or revenue (the latter of which hasn't really gone up).
On a slightly different note, I'll quote Bill Hicks, even though it has nothing to do with the GDP, but everything to do with America:
"They say we're losing the War on Drugs. You know what that means? The drug users are winning! And we're all fucked up on drugs!"