Paul Krugman from behind the Times Select paywall writes:
Mr. Bush, of course, bears primary responsibility for the state of his presidency. But there's more going on here than his personal inadequacy; we're looking at the failure of a movement as well as a man. As evidence, consider the fact that most of the conservatives now rushing to distance themselves from Mr. Bush still can't bring themselves to criticize his actual policies. Instead, they accuse him of policy sins in particular, of being a big spender on domestic programs that he has not, in fact, committed.
The actual polices conservatives can't bring themselves to criticize are the Iraq war (which they supported), the wartime tax cuts (an article of faith impervious to reality), and the "systematic dishonesty" of Bush's budgets (They knew he was lying about the budget "but they thought they were in on the con.")
So what's left? Well, it's safe for conservatives to criticize Mr. Bush for presiding over runaway growth in domestic spending, because that implies that he betrayed his conservative supporters. There's only one problem with this criticism: it's not true.
It's true that federal spending as a percentage of G.D.P. rose between 2001 and 2005. But the great bulk of this increase was accounted for by increased spending on defense and homeland security, including the costs of the Iraq war, and by rising health care costs.
Conservatives aren't criticizing Mr. Bush for his defense spending. Since the Medicare drug program didn't start until 2006, the Bush administration can't be blamed for the rise in health care costs before then. Whatever other fiscal excesses took place weren't large enough to play more than a marginal role in spending growth.
So where does the notion of Bush the big spender come from? In a direct sense it comes largely from Brian Riedl of the Heritage Foundation, who issued a report last fall alleging that government spending was out of control. Mr. Riedl is very good at his job; his report shifts artfully back and forth among various measures of spending (nominal, real, total, domestic, discretionary, domestic discretionary), managing to convey the false impression that soaring spending on domestic social programs is a major cause of the federal budget deficit without literally lying.
But the reason conservatives fall for the Heritage spin is that it suits their purposes. They need to repudiate George W. Bush, but they can't admit that when Mr. Bush made his key mistakes starting an unnecessary war, and using dishonest numbers to justify tax cuts they were cheering him on.