From The Pew Research Center:
Bush’s personal image, by contrast, is at the low point of his presidency. His overall favorability rating has tumbled from 72% last April, shortly after the fall of Baghdad, to 53% in the current survey. Moreover, when asked for a one-word description of Bush, equal percentages now give negative and positive responses, which marks a dramatic shift since last May when positive descriptions outnumbered negative ones by roughly two-to-one (52%-27%). The most frequently used negative word to describe Bush is “liar,” which did not come up in the May 2003 survey. The president’s job approval also stands at an all-time low. Just 48% approve of his performance as president, the first time in his presidency his rating has fallen below 50%.