American Progress Action Fund has a list of broken Bush promises. It is a long list, although I'm not sure how much longer it is than a comparable list might have been after, say, Clinton's first term. Or Reagan's.
The difference between this administration and Clinton's, of course, is that Clinton did a lot of other things right: he managed the economy well; he lowered the deficit rather than increasing it; the tried faithfully to make peace in the mid-east; and he faced a hostile congress dominated by Republicans. (I imagine some conservatives would say something similar about the first Reagan administration.)
In contrast, in addition to his well-known economic and foreign-policy failures, Bush has no substantial domestic policy successes to brag about (except tax cuts if you are wealthy), despite having a solidly Republican Congress.