I am not sure that the question of spending is a valid one with Bush's last term. He had a number of expenses that were out of the ordinary; like rebuilding the Pentagon, aid to NYC for the rescue and clean up of the WTC attack, military operations against two countries, increasing intelligence assets, setting up the Department of Homeland Security, increased security around the country, etc. I am not sure how much those items added to the increase in spending that Bush is blamed for but I would guess it is a large part. That would be an interesting stat. to have.