But its not for any good reason, like his personal vendetta against Iraq, or Chenny's secretly pulling the strings behind the scene, or the gutting of environmental laws, or professing to be a Christian but not actually displaying any of the attributes of Christ, or turning back 200 years of struggles for freedom with the homeland defense big brother initiatives, or his record high budget deficits, or tax breaks for the rich, or any other of the many good reasons. These are all good reasons for thinking people, but lets face it, we're in the minority.
No, what will bring Bush down, is something that's almost not his fault. Its actually mostly a Republican issue that's gone back to the days of Reagan: not supporting energy research. They've supported big oil and massive consumption, and now its come back to bite them. We're actually using as much as there is out there (in terms of pumping capacity), and China is now trying to use more and more of it, so there's a shortage. And its a shortage that impacts everyone equally.
So, with gas prices at more than $2/gallon, people are feeling the pain, and will vote for someone new for president this year.