Economist Robert Shapiro looked at Bureau of Labor Statistics data and concluded:

From December 2007 to July 2009 - the last year of the Bush second term and the first six months of the Obama presidency, before his policies could affect the ...economy - private sector employment crashed from 115,574,000 jobs to 107,778,000 jobs. Employment continued to fall, however, for the next six months, reaching a low of 107,107,000 jobs in December of 2009. So, out of 8,467,000 private sector jobs lost in this dismal cycle, 7,796,000 of those jobs or 92 percent were lost on the Republicans' watch or under the sway of their policies. Some 671,000 additional jobs were lost as the stimulus and other moves by the administration kicked in, but 630,000 jobs then came back in the following six months. The tally, to date: Mr. Obama can be held accountable for the net loss of 41,000 jobs (671,000 - 630,000), while the Republicans should be held responsible for the net losses of 7,796,000 jobs.