This chart comes from a website called the Daily Jobs Report, and here it is, along with a description of what it is:
"This sample chart shows the business cycle of the US economy. It is derived from tax data reported by the US Treasury Department, and is updated each business day. Each point on the chart is the year-over-year growth rate of taxes withheld from the paychecks of American workers....Notice how this technique captured the plunge during the recession in 2001, the bottom in late 2002, the expansion up to the top in 2007, the bone-crushing collapse of 2008 and 2009, and the rebound of 2010."
You can also see a more detailed explanation of what this reveals at this page of their website.
This chart clearly reveals that the collapse of the economy began under George W. Bush's watch, and that the economy was in free fall by the time Obama took over. Within months of taking office, Obama had stopped the crash, and despite constant attempts by Republicans to sabotage his efforts, had turned things around and set us on the painful road to recovery from the Republican damage.
The campaign to deny this reality is going to be financed by hundreds of millions of dollars of corporate money. Nothing in the coming year is more important than refuting this malignant lie, and I will continue assembling evidence of the truth about the collapse of the economy, at the hands of the now-nearly-disappeared Republicans George Bush and Dick Cheney.