From the Center on Budget and Policy Priorities:
Some lawmakers, pundits, and others continue to say that President George W. Bush’s policies did not drive the projected federal deficits of the coming decade — that, instead, it was the policies of President Obama and Congress in 2009 and 2010. But, the fact remains: the economic downturn, President Bush’s tax cuts and the wars in Afghanistan and Iraq explain virtually the entire deficit over the next ten years...
Who needs Medicare? We've got magic tax cuts!
The deficit for fiscal year 2009 — which began more than three months before President Obama’s inauguration — was $1.4 trillion and, at 10 percent of Gross Domestic Product (GDP), the largest deficit relative to the economy since the end of World War II. At $1.3 trillion and nearly 9 percent of GDP, the deficit in 2010 was only slightly lower. If current policies remain in place, deficits will likely resemble those figures in 2011 and hover near $1 trillion a year for the next decade…
The key question is: where do we go from here? It’s too late to undo the damage caused by the tax cuts and wars over the last decade, which have left us with a large overhang of debt. (In fact, that debt legacy — and the resulting interest costs — are a key reason, along with an aging population and rising health-care costs, that it’s unrealistic and ill-advised to restrict total federal spending to the average outlay levels that prevailed over the 1970-2008 period, as some have proposed.) But it’s feasible to enact measures now — to take effect once the economy has recovered more fully — that would put the budget on a sustainable path without jeopardizing the economic recovery.