That tax cut did nothing to stimulate the economy. especially when the biggest aspects of the cut still have not kicked in to generate stimulation.
You ask what Bush has done to hurt the economy - how about huge deficits going beyond the next ten years. It's so bad that he has ordered the government not to project deficits beyond the next five years. This will wreck havoc with bonds and interest rates as well as sucking more taxpayers dollars to service the debt. All to finance his little idealogical crusade.