Again you count 2009 in Obama's column, WTF!?
And again you lowball the reduced revenue.
Almost all the data I've seen over the last 4 years have indicated the great recession reduced the government's tax revenues by about $500B per year. I even explained how we got there in an earlier post.
2010-2012 would then mean $1.5T less in revenue - A little under half of the new debt in that time frame. If the economy was strong the deficits would be around $500B. If we eliminated the Bush tax cuts and end the Afghan war we come close to balancing the budget.
How do I know this? WE DID IT BEFORE IN THE 90S.
It doesn't take a genius to figure out we need to go back to the policies of the 90s which produced so much prosperity.