Your numbers are off a bit. At the end of the Bush 2 administration's FY 2009 budget, total debt was $11.645 trillion, not $10 trillion. CONveniently, most cons leave out the last year of his devastating impact on the economy and the U.S. budget, which ended on June 30, 2009, 5 months after he left office. This was mostly due to the fact that the treasury saw approximately $600 billion less in revenues/taxes that Bush 2 had written into his budget in June 2008 then what was actually seen after the financial meltdown.