The DNC's Donna Brazille is on CNN right now and has said, without rebuttal from Bay Buchanon, that the Bush Tax cut has been "pushing the economy down."
Some economists have claimed that the tax cut hasn't helped the economic situation, and have basically said it has had no effect on the overall economy. But no one that I've heard of, including Paul Krugman has claimed that it has hurt the economy. In fact, in one of his most recent columns, Krugman actually said that the tax cut has helped the economy, albeit only slightly.
Ignorance or dishonesty on Brazille's part?