Let's look at the facts: by the time the economy blew up, Bush had been in power for almost 8 full years with working Republican majorities in both houses for all of that time. Clinton left the Repubs with budget surpluses. The Republicans squandered the surpluses on pointless tax cuts and even more pointless wars and blew up the economy in an orgy of deregulation.
What's miraculous is that there are still half of the voters who DON'T blame Bush. We call those people "morons."