Total government spending in the US doubled from 1998 to 2011.
While the US economy only increased by 1/3, and population only increased by roughly 15%.
Why would you need twice the government spending for 15% more people? We had 270 million people in 1998, and now have 312x million.
Total government expenditures (local + state + federal) in the US came to over $7 trillion in 2011 (counting the deficit spending). Out of an economy that is close to $16 trillion. Under absolutely no scenario is that austerity, it's the greatest spending binge in world history.
To put it another way, our government system spends more than the combined economies of Germany + France + Britain are worth.
If that's austerity, then the 1990s were hyper austerity by comparison. Somehow we managed to have a government that was more functional then than the one we have now.