h/t http://reason.com/blog/2011/11/17/cbo-on-the-stimulus

The quote that matters starts around 1:25, when Elmendorf says that, according to CBO's estimates, with the stimulus legislation in place, "the level of GDP would be a little lower at the end. That is, a net negative effect on the growth of GDP over 10 years." Elmendorf then confirms that CBO estimates that the economic drag will continue in the following decade