From a NYTimes article today by David Leonhardt:
"The story of today’s deficits starts in January 2001, as President Bill Clinton was leaving office. The Congressional Budget Office estimated then that the government would run an average annual surplus of more than $800 billion a year from 2009 to 2012. Today, the government is expected to run a $1.2 trillion annual deficit in those years.
"You can think of that roughly $2 trillion swing as coming from four broad categories: the business cycle, President George W. Bush’s policies, policies from the Bush years that are scheduled to expire but that Mr. Obama has chosen to extend, and new policies proposed by Mr. Obama."
Read the entire Leonhardt piece here.