Bush's overall approval rating: 19%
If you assume the population is 1/3 hard-core Repubs, 1/3 hard-core Dems, 1/3 in middle, that means even his hard-core supporters have thrown him under the bus!
Also, click on "Impeachment" and you find:
A total of 64% of American voters say that President George W. Bush has abused his powers as president. Of the 64%, 14% (9% of all voters) say the abuses are not serious enough to warrant impeachment, 33% (21% of all voters) say the abuses rise to the level of impeachable offenses, but he should not be impeached, and 53% (34% of all voters) say the abuses rise to the level of impeachable offenses and Mr. Bush should be impeached and removed from office.
We have all unfortuately now lived under the worst President that the US has ever seen.